Document 91OVwyY4RxQQo7ygbYejN7og3

FLUID BED DRYER REACTIVE CHEMICAL REVIEW (NOVEMBER 5. 1987 o:30 A. M. 2510 BUILDING CONFERENCE ROOM CONFIDENTIAL DO 00371*9 FLUID BED DRYER PROJECT 1. INTRODUCTION 2. RAW MATERIALS AND PRODUCTS 3 INDEX FLOWSHEET 4 THERMAL STABILITY DATA 5. DUST EXPLOSION PROPERTIES OF CPE AND CALCIUN STEARATE 6 PROJECT DESIGN TO REDUCE DUST EXPLOSION HAZARDS 7 DESIGN OF SYSTEM TO REDUCE "WHAT IF" SITUATIONS 8 MATERIAL SAFETY DATA SHEETS 9. APPENDIX 10 OPEN CONFIDENTIAL DO 003720 RAW MATERIALS AND PRODUCTS MATERIAL PHYSICAL DATA STABILITY l NCO M PATABILITIES rj0TES BETZ GCP-185 Ca Carbonate LIQUID FLASH PT> 200 F VAPOR PRESS = 18 mmHg STABLE SOLID STABLE CONTAINS CAUSTIC CPE SOLID Talc SOLID DECOMPOSITION AT HIGH TEMPS (>180C) STABLE POSSIBLE DUST EXPLOSION HAZARD, PART SIZE < 200 MESH Calcium Stearate SOLID STABLE MINERAL ACIDS ALKALINES. ORGANIC ACIDS AND AMINES 11AY FORM C0MBUSTI6I C DUST CONCENTRATIONS M'ST = 273) C O N F ID E N T ! 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"* 1 itV . --* ; "* w-t.j *<t JU <c Pt" Plot ficftpj HgFggfMCg PBAVIM&S* MB Q MtHUMMtllii Ml *4* Mi liil WMt MUYmi Ml M *# |MfM< NtMl Ml " inC~` "i --j-- .kta WSgpfc. * lli A*-|I :n:*::z, y 00 003724 CONFIDENTIAL C O N F T D E N T T A l- 00 003725 FLUID BED DRYER PROJECT VACUUM SVSTEM THERMAL STABILITY DATA POTENTIAL PROBLEM - CPE FLAMMABILITY TGA DATA SAMPLE FIO ANTIBLOCK ADDITIVE DECOMPOSITION TEMPERATURE DEGREE C 1ST 2ND 3RD CM0136 CM0566 XU63003.18 XU63003.10 1 2 3 4 TALC TALC SF, CAST SF, CAST 338 345 352 333 473 465 467 468 - 475 - CONCLUSION: NO MAJOR DIFFERENCE IN THERMAL STABILITY WITH THE USE OF DIFFERENT ANTIBLOCK ADDITIVES DTA DATA EXOTHERMIC REACTION START PEAK END 313 DEGREE 360 DEGREE 392 DEGREE ARC DATA 190 DEGREE C 251 DEGREE C 165 DEGREE C 190 DEGREE C 220 DEGREE C GASING AND DECOMPOSITION* RUNAWAY AT LOW RATES WHICH DO NOT SUSTAIN THERMSELVES UP TO 300 DEGREE C* 1ST EMISSION OF CO MAX + PEAK OF CO EMISSION 1ST EMISSION OF-BENZENE+ ------ * - DATA FROM 10/87 + - DATA FROM 4/86 CONFIDENTIAL DO 003726 i THERMAL STABILITY WITH RESPECT TO RESIDENCE TIME ARC DATA, TEST I - INITIAL TEMPERATURE OF 121 C. DECOMPOSITION TEMP C TIME UNTIL STARTED MATERIAL GIVEN OFF 1ST 121 C 9 8 HP HC1 2ND 195 C 69.2 HR CO 3RD 215 C 93 2 HR BENZENE &, OTHER ORGANICS TEST 2 - INITIAL TEMPERATURE OF 116 C, A, AFTER 120 HOURS, NO THERMAL DECOMPOSITION TOOL PLACE B, THE TEMPERATURE WAS RAISED TO 121 C FOR 46 HOURS BUT NO THERMAL DECOMPOSITION TOOK PLACE, C, MATERIAL WAS OBSERVED TO BE BLACK AFTER 120 HOURS ASSUMPTION; HC1 DECOMPOSITION HAD TAKEN PLACE BUT AT SUCH A SLOW RATE ( < 0.02 C TEMPERATURE INCREASE PER MIN) THAT IT WAS NOT DETECTED WKB 10/87 CONF-rOENTlAV. DO 003727 PREVENTATIVE MEASURES FOR THERMAL ( DECOMPOSITION IN THE FLUID BED DRYER EXISTING 1 OPERATE AT 250 121 C) MAXIMUM INLET AIR TEMPERATURE. 2 HIGH TEMP ALARMS IN CYCLONE EXHAUST AIR ARE SET AT 185 F 3. EMERGENCY SHUTDOWN DEVICE THAT SHUTS DOWN THE FBD BLOWERS AND ACTIVATES A DELUGE SYSTEM (WATER.) 4. ROUTINE INSPECTION OF FLUID BED DRYER INTERIERi BEDPLATE) 5. ROUTINE INSTRUMENT CALIBRATION CHECKS QUARTERLY 6 DUEL TEMPERATURE PROBES IN EACH STAGE 7 RESIN TEMPERATURE ALARMS - 165 F ON ALL STAGES. S. WALL MOUNTED TEMPERATURE PROBES (30) IN EACH BED 9, COMONITER ON EXHAUST AIR HEADER. PROPOSED FOR NEW FLUID BED DRYER: 1. MORE EFFICIENT PLENUM CHAMBER, 2. MORE EFFICIENT GILL PLATE DESIGN. 3. EXPLOSION VENTS IN BED AND CYCLONES. 4. UNDERFLOW LUMP DUMP VALVE ALLOWS OVERSIZE TO BE REMOVED FROM THE BED. 5. ADDITION OF CALCIUM STEARATE AS DRYER PRXESSING AID. WKB 10/87 confide^1 D0 003728 DUST EXPLOSION DATA CALCIUM STEARATE PRODUCT MAX PRESS MAX PRESS RISE K.ST EXPLOSION (BAR) (BAR/SEC) (BAR M/SEC) CLASS PART SIZE (MICRONS) CA ST (MIN) CA ST (MAX) 5.5 434 150 1 8.3 973 273 2 53 cr' PARTICLE SIZE MINIMUM ENERGY MINIMUM IGNITION TEMP 99 5* THRU 325 MESH SCREEN 0 125 JOULES (DOW RESEARCH' 400 C (752 F) CONCENTRATION < OZ / CU FT) 0 05 0.10 0 15 0.20 0.25 0.50 * 1.00 * MAX PRESS RISE PSI / SEC (BAR/SEC) 8809 (165) 10425 (195) 8834 (165) 7007 (131) 4816 (90) 3318 (62) * - CONSIDERABLE UNBURNED MATERIAL MAX PRESS (PSI) 82 89 85 80 69 59 WKB 10/8? C0NFTDENT1AI DO 00372*9 DUST EXPLOSION DATA CALCIUM STEARATE AND TALC SAMPLE MISTPON EG talc SUPERPFLEX * l CaC03) TALC + 10St CA ST TALC + 20* CA ST TALC * 30!? CA ST TALC + 40S CA ST TALC SOS CA ST MINIMUM ENERGY > 20 -JOULES > 20 JOULES > 20 JOULES ' 20 JOULES 0 50 JOULES 0.125 JOULES 0.125 JOULES OTHER DATA 20 LITER DEVICE HARTMANN TALC + 20 S CA ST 140 JOULES + SPARK AT 1,002 OZ/CU FT NO IGNITION TALC 20 % CA ST HOT GLOWING WIRE AT 0.8 OZ/CU FT NO IGNITION WKB 10/8? CONFIDENTIAL DO 003730 DUST EXPLOSION DATA CPE PRODUCT MAX PRESS MAX PRESS RISE K'ST EXPLOSION (BAR) (BAR/SEC) (BAR M/SEC.' CLASS PART si: '.MICRON 36R 36X (2S SF) 0 0 XU 3.13 (2% SF) 0 XU 3 12 0 CR CAST) 36R FINES 4.6 36R FINES 4.8 25R FINES 42R FINES 4.8 s.s 36R FINES 4.4 PE PCWDER 6.9 XU 3.04 1.9 (2S CAST) 36 r. 0 OR CAST) 36 R 4.1 (5R CAST) 36R 2.0 (10RCA ST) 00 00 00 00 107 28 70 17 80 21 135 36 SO 13 240 1 *< 00 35 9 20 5 0 0 0 0 1 1 1 1 1 1 1 0 1 1 25u 175 233 140-200 140 < 140 <230 * 84 TYP 140 ; 140 : 140 < 140 WKB 10/87 C.ON<' DO 00^7^ DUST EXPLOSION DATA 30% CPE AND 20% CA ST COMPOSITION MINIMUM ENERGY MAXIMUM PRESSURE MAXIMUM PRESSURE RISE (dP/dt) KST VALUE CONCENTRATION 0 125 JOULES 4 BARS 50 BARS/SEC 13 BARM/SEC 0 75 OZ/CU FT MINIMUM ENERGY WITH 13* CA ST AND 87$ CPE WITH 15* CAST AND 551 CPE ME 20 JOULES ME 20 JOULES NOTE- PARTICLE SIZE CPE < 80 MESH (<180 MICRONS) CA ST < 200 MESH (< 60 MICRONS> WKB 10/87 CONFIDENTIAL DO 003732 CALCIUM STEARATE RETENTION ON CPE % CA ST MIXED WITH CPE % CA ST RETENTION 0.5% 1.0% 1.5% 2.0% 2.5% 3.0% 4.0% ''T CO 92% 94% 93% 91,5% 88% 84% DATA FROM LAD - 676 0.5% TO 2.0% 97% TO 99% DATA FROM STD - 82-- 025 WKB 10/87 CONFIDENTIAL DO 003733 PREVENTATIVE MEASURES PREVENTION PRINCIPLES INCORPORATED INTO THE DESIGN OF THE CA ST ADDITION EQUIPMENT AND FLUID BED DRYER: 1 IGNITION SOURCES 2. OXYGEN SOURCES 3. CONFINEMENT ELIMINATE ELECTROSTATIC SPARK POTENTIAL BY GROUNDING OF ALL EQUIPMENT WITH LESS THAN 10 OHM RESISTANCE ASSIGN CA ST ADDITION SYSTEM AREA AS A CLASS 2 - DIVISION 2 - GROUP G RESTRICTED AREA PROVIDE NITROGEN PADDING FOR Ca ST 5T0RAGE HOPPER AND TRANSFER SYSTEM MECHANICALLY CONVEYED SYSTEM TO PROVIDE ADEQUATE VENTILATION FOR CA ST HANDLING EQUIPMENT USE OF VACUUM SYSTEM/WET SCRUBBER ON CA ST EQUIPMENT FOR DUST CONTROL WKB 10/87 CONFTDFNTTAl DO 003734 PREVENTATIVE ACTIONS WHAT IF PREVENTION BUILT-IN EQUIPMENT, INTERLOCKS, AND/OR CONTROLS TO REDUCE THE POTENTIAL Of A DUST EXPLOSION FROM A SPECIFIC CAUSE PROBLEM CORRECTIVE ACTIONS l BULK BA6 LOADING SYSTEM A LEAKING CAST VACUUM SYSTEM TO REDUCE FREE FLOATING DUST B SPILL FROM BULK BAG 2. CA ST TRANSFER SYSTEM EXHAUST FANS TO KEEP CONCENTRATION DOWN H20 MiST SYSTEM TO KNOCK DOWN DUST CONCENTRATIONS IN THE AIR A. POTENTIAL FOR, DUST EXPLOSION NITROGEN PADDED LO Flow SHUTDOWN SWITCH WHEN TRANSFER LINE IS EMPTIED 3. CA ST STORAGE HOPPER A, POTENTIAL FOR DUST EXPLOSION NITROGEN PADDED MECHANICALLY CONVEYED CA ST TO HOPPER HIGH LEVEL SHUTDOWN ON BULK BAG SYSTEM NO FLOW SHUTDOWN WHEN BULK BAG IS EMPTY 4. BLENDER 305 A DUST ACCUMULATION CPE WILL BE AT 30 - 4013 MOISTURE LEVEL SLIGHT VACUUM TO REDUCE FREE CA ST DUST LEVEL SWITCH TO INDICATE PLUGGED BLENDER 5. TO INSURE CORRECT CA ST FLOW TO FBD306 A. CPE NO FLOW SOLID FLOW SWITCH FOR CPE FROM WF - 305 SOLID FLOW SWITCH FOR CA ST FROM WF - 315 CONTROLLER INTERLOCK COMPUTER INTERLOCK SOLID FLOW SWITCH FOR TRANSFER LINE B INCORRECT X CA ST TO F6D-306 SAME AS ABOVE COMPUTER INTERLOCK LOGIC TO DIAGNOSE FLOWS WKB lO.'B? CO^"1 DO 00373s PREVENTATIVE ACTIONS CONTINUED L 6 FLUID BED DRYER A POTENTIAL OF DUST EXPLOSION ? BLENDERS A POTENTIAL OF DUST EXPLOSION I ST AND 2ND STAGE OPERATES AT DEW POINT AIR CHANGE OUT RATE IS APPROXIMATELY NINE TIMES PER MIN HIGH AIR VELOCITY RETENTION OF CA ST ON CPE PARTICLE FBD AND CYCLONE VENTING ROUTINE INSPECTION OF BEDPLATES SEE ALSO PREVENTATIVE MEASURES FOR THERMAL DECOMPOSITION GROUNDED SOCKS GROUNDED BLENDERS AND TRANSFER LINES EXPLOSION VENTING NOTE l. ALL EQUIPMENT AND LINES WILL BE GROUNDED ALL ELECTRICAL WILL MEET CLASS 2, DIVISION 2, GROUP G CODES START - UP, ROUTINE OPERATIONS, SHUTDOWN, AND EMERGENCY PROCEDURES WILL BE GENERATED AND IMPLEMENTED FOR ALL EQUIPMENT CONFTDFWr^1DO 003736 WK6 10/87 PREVENTATIVE ACTIONS CONTINUED WHAT IF THERE IS AN ACCIDENT AND A DUST EXPLOSION TAKES PLACE 1. TO PREVENT SECONDARY EXPLOSION A . IN CA ST STRUCTURE OBSTRUCTIONS THAT WOULD ACCUMULATE DUST WILL BE REDUCED AS MUCH AS POSSIBLE A MIST SYSTEM WILL BE AVAILABLE 6000 H0USEKEEP1N6 WILL BE DONE ON A ROUTINE BASIS adequate ventilation system STRUCTURE WILL BE ENCLOSED WITH ADEQUATE EXPLOSION RELIEF PANALS VENTED TO ISOLATED' AREA B.INCA ST EQUIPMENT VESSELS WILL BE SIZED TO WITHSTAND THE EXPLOSION OR VENTED TO AN ISOLATED AREA NUMEROUS EQUIPMENT INTERLOCK SYSTEMS WILL BE INSTALLED OUENCH SYSTEMS (WATEP) ON MAJOR EQUIPMENT C, IN FLUID BED DRYER AUTOMATED OUENCH WATER SYSTEM EXPLOSION RELIEF VENTED TO ISOLATED AREA 2 TO OFFER MAXIMUM PERSONAL PROTECTION A CA ST ADDITION AREA CA ST STRUCTURE WILL BE ISOLATED BV PROTECTIVE WALL AND EXPLOSION RELIEF RESTRICTED ACCESS B.IN PROCESS AREA VENTIN6 DIRECTION RESTRICTED ACCESS MINIMUM OPERATOR INTERFACE TIME SPRINKLER SYSTEM WKB 10/8? CONFTDFNTT AL DO 003737 REFERENCES 1 LAD-678 2. LAD-1553 3. STD-82 -025 4. Ml-AL 78 -22411 5. 0 C MEATHOD DEVELOPMENT LABRATORIES , LETTER TO BARRIOS . 4-30-36 6. BRAISE. W,C. . LETTER TOJ HEASLIP, 3-17-81 7 TAIT, R., LETTER TO J HEASLIP. 3-17-81 8. TAIT, R.. LETTER TO J. HEASLIP, 5-1-81 9 BRAISE, W.C., LETTER TO BARRIOS. 5-7-86 10. CHEMICAL HAZARD DATA SHEETS ON FILE IN CRl CONFTOPNTTAl DO 003738 MATERIAL SAFETY DATA SHEET Dow Chemical U.S.A. Midland, MI 48674 Emergency Phone; 517-636-4400 Product Code: 13615 Page: 1 PRODUCT NAME: TYRIN (R) CfAO/afc CHLORINATED POLYETHYLENE ELASTOMER Effective Date: 10/15/85 Date Printed: 06/05/87 MSD: 000863 1. INGREDIENTS: HD chlorinated polyethylene, containing 36 wt % chlorine CAS# 064754-90-1 Talc CAS# 014807-96-6 >95% This document Is prepared pursuant to the OSHA Hazard Communication Standard (29 CFR 1910.1200). In addition, other substances not 'Hazardous' per this OSHA Standard may be listed. Where proprietary Ingredient shows, the Identity may be made available as provided In this standard. 2. PHYSICAL DATA: BOILING POINT: Not applicable VAP PRESS: Not applicable VAP DENSITY; Not applicable SOL. IN WATER: N11 SP. GRAVITY: 1.16 APPEARANCE: Off-white powder. ODOR: No odor. 3. FIRE AND EXPLOSION HAZARD DATA: FLASH POINT; Not applicable METHOD USED: Not applicable FLAMMABLE LIMITS LFL: Not applicable UFL: Not applicable EXTINGUISHING MEDIA: Water fog, foam, alcohol foam, C02, dry chemlca1. FIRE & EXPLOSION HAZARDS: Fines can create possible dust explosion hazard. Keep dust clouds away from possible Ignition sources. FIRE-FIGHTING EQUIPMENT: Wear positive pressure self-contained breathing apparatus. 4. REACTIVITY DATA: STABILITY; (CONDITIONS TO AVOID) Avoid high temperatures - HC1 gas evolved. (Continued on Page 2) (R) Indicates a trademark of The Dow Chemical Company CONFTDFNTTAl DO 003739 MATERIAL SAFETY DATA SHEET Dow Chemical U.S.A. Midland, MI 40674 Emergency Phone: 517-636-4400 Product Code: 13615 Page: 2 PRODUCT NAME: TYRIN (R) Crl 0136 CHLORINATED POLYETHYLENE ELASTOMER Effective Date: 10/15/85 Date Printed: 06/05/87 MSD: 000863 4. REACTIVITY DATA: (CONTINUED) INCOMPATIBILITY: (SPECIFIC MATERIALS TO AVOID) No data aval table. HAZARDOUS DECOMPOSITION PRODUCTS: HC1 gas. HAZARDOUS POLYMERIZATION: Will not occur. 5. ENVIRONMENTAL AND DISPOSAL INFORMATION: ACTION TO TAKE FOR SPILLS/LEAKS: Sweep up and discard. DISPOSAL METHOD: Burn In adequate Incinerator or bury In landfill In accordance with applicable federal, state and local regulations. 6. HEALTH HAZARD DATA: EYE: May cause slight transient (temporary) Irritation with corneal Injury. SKIN CONTACT: Prolonged or repeated exposure not likely to cause significant skin Irritation. SKIN ABSORPTION: A single prolonged exposure Is not likely to result In the material being absorbed through skin In harmful amounts. INGESTION: Single dose oral toxicity Is believed to be low. oral LD50 for rats Is >4000 mg/kg for certain chlorinated polyethylenes. The INHALATION: Single exposure to dust Is not likely to be hazardous. Vapors are unlikely due to physical properties. SYSTEMIC & OTHER EFFECTS: Based on available data, repeated exposures are not anticipated to cause any significant adverse effects. 7. FIRST AID: EYES: Irrigate with flowing water Immediately and continuously for 15 minutes. Consult medical personnel. SKIN: Wash off In flowing water or shower. (Continued on Page 3) (R) Indicates a trademark of The Dow Chemical Company CONFIDENT'*1 DO 0037*0 MATERIAL SAFETY DATA SHEET Dow Chemical U.S.A. Midland, MI 48674 Emergency Phone: 517-636-4400 I Product Code: 13615 Page: 3 Ph.uUCT NAME: TYRIN (R) CM 0136 CHLORINATED POLYETHYLENE ELASTOMER Effective Date: 10/15/85 Date Printed: 06/05/87 MSD: 000863 7. FIRST AID: (CONTINUED) INGESTION: Induce vomiting If largo amounts are Ingested. Consult medical personnel, INHALATION: No adverse effects anticipated by this route of exposure Incidental to proper Industrial handling. NOTE TO PHYSICIAN: No specific antidote. Supportive care. Treatment based on judgment of the physician In response to reactions of the patient. 8. HANDLING PRECAUTIONS: EXPOSURE GUIDELINE(S): None established. VENTILATION: Good general ventilation should be sufficient for most conditions. RESPIRATORY PROTECTION: In dusty atmospheres, use an approved dust respirator. SKIN PROTECTION: No precautions other than clean body-covering clothing should be needed. EYE PROTECTION: Use safety glasses. 9. ADDITIONAL INFORMATION: SPECIAL PRECAUTIONS TO BE TAKEN IN HANDLING AND STORAGE: Practice reasonable care and caution. MSDS STATUS: Revised sections 1-8. The Information Herein Is Given In Good Faith, But No Warranty, Express Or Implied, Is Made. Consult The Dow Chemical Company For urther Information. DO it CALCIUM STEARATE ( Material Safetv-Data Sheet Emergency Telephone Humber 314-982-5000 Mallinckrodt, Inc. P.0. Box 5439 St. Louis, Mo. 63147 Effective Date: 09/24/85 El9<foC._ Isteutlflsattviu Synonyms: Stearic acid, calcium salt; Octadecanolc acid, calcium salt Formula CAS Ho.: 1592-23*0 Molecular Height: 607 (pure) Hazardous Ingredients: Hone. Chemical Formula: Ca(CigH3502)-25V The exact product composition depends on the purity of the tallow used. FftECftVIIflflARTLHEASUBES CAUTIOH! MAY FORM COMBUSTIBLE DUST COHCEHTRATIOHS IH AIR. Store in a tightly closed container. Avoid dust cloud In presence of an Ignition source. Maintain adequate ventilation. As part of good industrial and personal hygiene and safety procedure, avoid all unnecessary exposure to the chemical substance and ensure prompt removal from skin, eyes ana ciotnmg. c EHERgEHSY/flESI-AIP SEE SECTI0H 5. DOT Hazard Class: EbyalsalJlfltfl Hot Regulated SECIiatLI Appearance: Fine white to yellow-white powder. Odor: Ho information found. Solubility: Insoluble in water, alcohol, ether; soluble in mineral oils, hot pyridine. Boiling Point: Decomposes. Melting Point: About 155C (311F) Specific Gravity: 1.03 Vapor Density (Air-1): Ho Information found. Vapor Pressure (mm Hg):Ho Information found. Evaporation Rate: Ho Information found. CASTA - CALCIUM STEARATE Mallinckrodt, Inc, DO 003742 CONFl'*,m AL ii e and Explosion i niormation OfIRE: i l Explosion: Fire Extinguishing Media: Special Information: Reactivity Data Stability: Hazardous Decomposition Products: (^Hazardous Polymerization: Incompatabilities: 2- - SECTIQH 2 As with most organic solids, fire is possible at elevated temperatures or by contact with an ignition source. Minimum dust cloud ignition temperature: 400C (752F). Fine dust dispersed in air in sufficient concentrations,- and in the presence of an ignition source is a potential dust explosion hazard. Minimum exploslble concentration : 0.025 g/1 (air) Maximum explosion pressure : 97 lb/sq.ln. Water spray, dry chemical, alcohol foam, or carbon dioxide. Water or foam may cause frothing. In the event of a fire, wear full protective clothing and NIOSH-approved self'contained breathing apparatus with full facepiece operated in the ?ressure demand or other positive pressure mode. ressure from the extinguishing media may cause severe dusting. Melted fatty acid can give "grease" type fire. SECTION.3 Stable under ordinary conditions of use and storage. Burning may produce carbon monoxide and calcium oxide. Will not occur. Mineral acids, alkalies, organic acids and amines of low molecular weight will decompose calcium stearate. Leak/Solll Disposal Information SECTION 4 Remove all sources of ignition. Ventilate area of leak or spill. Clean-up personnel may require protection from inhalation of dust. Spills: Clean up spills in a manner that does not disperse dust into the air. Use non-sparking tools. Pick up spill for recovery or disposal and place in a closed container. Disposal: Whatever cannot be saved for recovery may be burned in an approved incinerator or disposed in an approved waste facility. Ensure compliance with local, state and federal regulations. c CASTA - CALCIUM STEARATE 1 Mallinckrodt, Inc. confidential DO 003743 Health Hazard Information Exposure/Health Effects Inhalation: Ingestion: Skin contact: Eye contact: Chronic Exposure: Aggravation of Pre-existing Conditions: FIRST AID Inhalation: Ingestion: Skin contact: Eye contact: -3SECTION 5 Symptoms from excessive inhalation of dust may include coughing and difficult breathing. Low level of toxicity by ingestion. No information found. Not expected to be a hazard. May cause mechanical irritation. Grossly excessive and chronic inhalation of the dust may cause a progressive chemical pneumonitis. Persons with pre-existing skin disorders, impaired respiratory function, or a history of pulmonary disease should not to be exposed to dusts. Remove to fresh air. Get medical attention for any breathing difficulty. Give several glasses of water to drink to dilute. If large amounts were swallowed, get medical advice. Wash exposed area with soap and water. Get medical advice if irritation develops. Wash thoroughly with running water. Get medical advice if irritation develops. C. TOXICITY DATA (RTECS, 1982) L No LD50/LC50 information found relating to. normal routes of occupational exposure. CASTA - CALCIUM STEARATE ,, Mallinckrodt, Inc. CONFIDENTS DO 00374A .* Occupational Control Measures --.Airborne Exposure Limits: Ventilation System: Personal Respirators: (NIOSH Approved) Skin Protection: Eye Protection: *4- SEgZIQW 6 No information found. In general, dilution ventilation is a satisfactory health hazard control for this substance. However, if conditions of use create discomfort to the worker, a local exhaust system should be considered. For conditions of use where exposure to the dust is apparent, a dust/mist respirator may be worn. For emergencies, a self-contained breathing apparatus may be necessary. Gloves and lab coat, apron or coveralls. Use chemical safety goggles. Contact lenses should not be worn when working with this material. Maintain eye wash fountain and quick-drench facilities in work area. Sigrflgs anfl Special Infgrmatign section i Avoid dust dispersal. Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Separate from incompatibilities. \ The information contained herein is provided in good faith and is believed to he correct as of the date hereof. However, Mallinckrodt, Inc. makes no repre sentation as to the comprehensiveness or accuracy of the information. It 1$ expected that individuals receiving the information will exercise their in dependent judgment in determining its appropriateness for a particular purpose. Accordingly, Mallinckrodt, Inc. will not be responsible for damages of any kind resulting from the use of or reliance upon such information. NO REPRESENTATIONS, or warranties, either express or implied, of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OF ANY OTHER NATURE ARE MADE HEREUNDER WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR TO THE PRODUCT TO WHICH THE INFORMATION REFERS. CASTA - CALCIUM STEARATE Mallinckrodt, Inc. CO^DFNTIA1 DO 0037AS Cyprus Minerals Company MATERIAL SAFETY DATA SHEET Hea"t 1 lemmaP1`'ll Keactivttv Personal Protect ion CD Qjj ca m I. IDENTIFICATION Product Nam.: MISTRON EG CNamical Nsme: TALC: HYDROUS MAGNESHX SILICATE CNamical Family: t0*mu'4: JMgO dS t? *1,0 1 ! SILICATES II. INGREDIENTS m nvti or Cnevica1 Nax-e s TAi; - * NATURAL hydROjs MiGNES'U" SUICAT- MINERAL DOLO<:T{ . A NATURAL MAGNiSIUM CALCIUM CAR33NU MINERAL CALC'TE * A NATURAL CALC. 1 UP CARBONATE MINERAL CMLPRItf - A NATURA. HYDROUS MAGNESIUM ALUMINUM 5UICATE MINERAL O'JARTT - A NATURAL CRrSTALLINf SILICA. MINERAl Wi T 9v -ir! *:. t-.e- 1! a*:- -v' *.! : t y. -* :i 1 V III. PHYSICAL DATA Bo* mg Po.n*; N0T aPPl CABlE Freezing Pom'.. NOT PI(!C*B. V Pressure: NOT AP.'CABLE VapO* Density : NOT A.=P. IC*B.: Evaporation Rata: NOT APPLICABLE I Volptile: NOT *BPlICA3L: Sped'C Gravity l.pt*' * 1): 2.7 - 2.8 Solubility in Water: NEG! '{jiBiT Appearance and OdO': a white POWDER WITH an EARIhy OOOR j r-: 1 . w, IV. FIRE AND EXPLOSION HAZARD DATA F:asn Point: NOT APPLICABLE 1i F I a"unable Limit*: not APPurtaiE Extinguisning Madia: NOT APPLICABLE p; Specia1 Fire Figntmg Procedure*: NOT APPLICABLE Unu*ua> (ire and Explosion Hazards: not APPLICABLE V. HEALTH HAZARD DATA Tr*-t&noio Limit Va<ue; 2 mo/MJ RESPIRABLE OUST OVER AN 8 HOUR EXPOSURE ERiDO posiib'e EMeet* oi a S<nale Overexposure 1 inhalation ACUTE ACCIDENTAL EXPOSURE WOULD BE NON-SPECIFIC AND Similar TO 1-tE in-.C; f (. y SYMPTOMS MIGHT INCLUDE COUGHING. WHEELING. DIFFICULT BREATHING an;. ijPmr R? s-'iAi (." RRlTATION. ir-c. SAin Contact NO ADVERSE EFFECTS ARE KNOWN AS A CONSEOUENCE 0-* APPLICATION 0 UNBREn.LN S- s, i Era Contact AS W>TH ANY PARTICULATE MATERIAL, TALC CAN CAUSE TEMPORARY DlSCOH-OR' *IO -RRi*A1iO\ 1 ACCIDENTALLY INTRODUCED INTO THE EYE. NO KNOWN HAZARD. Crpru* Industrial Miner** Company/Talc Division Box 3*19. Englewood, CO B01SS/I303) 740-54AO 5A-1003T (Rev. IO-B5) CONFIDENTIAL 00 003746 t Prss.t. r I pi Repeated (/fetpf--..'t | Tt'RE ARl Rl PORTS 1HAT A RtL*1ivriT wMp Wfl UKWOCOM OS $ CAN DEVELOP OVER 1O*0 Y{ ARS OT OCClP'AT ION*l t XHOS'JRI 10 MIXID ttlSTS CONTAINING TALC. T*! PUlMONARt OlSIASI WHICH DEVELOPS ATTfR SUCH PROLONGED t XPOSURf mat EXIST Wll W WITTCUI IMaiMN1 IN HINT. (UNCTION, PROLONGED tNMAlAl ION MAT PROVOKE A I IBROT 1C RESPONSE SIMPLY BltAUSI O lMf INSOLURi.1 NATURE 0* TMl MINERAL TiALC. .. 1 iroency and (Irat Aid Procedg-at 1 Innaiation REMOVE TO FRESH AIN, IF BREAIMING IS OlFFICULt, GIVE OXTGIN AND CALL A PhtSiCIAN. Skin Contact of NO GENERAL concern. BROKEN Skin can be cleansed with soap and WATER, i Er* Contact FOR ACUTE EXPOSURE, FLUSH WITH WATER. IF IRRITATION OR DlSCO*ORT PERSISTS, Clt "h-S'Cian. tnfle**ion Nolei to Pnyt >c1 an NO TREATMENT NECESSARY. ____ -_______ '________i THERE are no SPECK ic AN'IDCTES to AQJT[ OVEREXPOSURE. TREATMENT SHOULD BE DIRECTED AT TM* CONTROl 0* THE AND The CLINICAL CONDITION, INDIVIDUALS WITH ACTIVE PULMONART DISEASE SHOULD NOT BE ASSIGNED TO ME A '.t; . ENVIRONMENT, jf,' StAbiliiT- TALC IS STABILE AND INERT Ha/jrdouS Decomposition Products: NONE Hazardous oi vmer i/a* <on NONE Conditions 1o AvoiO: NONE VI. REACTIVITY DATA InCC* * * til I IT T : NONE . . Si to be Tanen .f Materia1 is Reiaased or Spi>led Waste Disposal Method ' VII. SPILL OR LEAK PROCEDURES VACUUM CLEN OR WE* ShEF SMtilAGE WASTE SHOULD BE D'SP&S'D OF IN CLOSED CONTAINERS TO Rl YEN' DUS' ResoiratorY Protection Vent IlatIon Protective Gloves Othtr Protective Eouipment VIII. SPECIAL PROTECTION INFORMATION NIOSH APPROVED DUSt RESlRA10RS FOR EXPOSURE TO POTENTIALLY HiG UlC DUS* rN. AXMjN'S local Exhaust ventilation recommended NOT REQUIRED Eye Protection safety classes NOT REQUIRED IX. SPECIAL PRECAUTIONS Precautions to be Taken in Handling and Storage AS WITH ALL POWDERS. LIMIT THE CREATION AND INHALATION OF DUST WET FLOORS mat BECOK EXTRtMilT SL(PPRt WHEN TALC IS PRESENT ;i EMERGENCY TELEPHONE NUMBERS v.- Mad.cal: 1303) 740-34*0 Technical: (3031 740-5700 [ill X. ADDITIONAL INFORMATION rn - } ) ji ' ' TEDERAL HftZaRp CLA55IT iCT ION NUMBERS Mi DOT Haxerd Clast ifcat ion - Talc no* titled I : 1 RCRA He?eraou* waste no, - Taic no' lisiec j! j CERCLA (Super'undt ReooriaP'e Ouan'ity - Taic nc* . mti' 34-I003T II0-8S) Baca - Prtparea by tne Cyprus Industrial Mineral* Product Sieardfiip Committee CONFIDENTIAL DO 003747 3ETZ IA-JCRATCRIES, INC. 46ifc SLMcRTCN ROAD TREVCSc* PA. 1SC47 eTZ MATERIAL SAFETY CATA SHEET 24 HCUR EMERGENCY TELEPHONE (HEALTH CR ACCIDENT) 215/355-3300 PROCUCT: 3E7Z GCP 1J5 (PAGE 1 CF 3) EFFECTIVE CATE 1/84 PRODUCT APPLICATION : CEPCSIT CONTROL PRCDLCT. ------------ SECTION 1--------------------------- HAZARDOUS INGREDIENTS------------------------------------- INFORMATION ON PHYSICAL HAZARDS. HEALTH HAZARCS. PEL'S AND TLV'S FCR SPECIFIC PRUDUCT INGREDIENTS AS REQUIRED 6f THE OSHA HAZARD COMMLNICATICNS STANDARD APE LISTEL. REFER TU SECTION 4 (PAGE 2) FDR CUR ASSESSMENT CF THE PC T ENT IAL ACUTE AND C HR CMC HAZAR.OS OF ThIS FORMULATION. SUDIUM HYURLA me*** (CAUSTIC S CD A ) ; CAS * 13 l C-7 3-2 jCCRROS I VE ; TC X IC IF CRALLY INGESTED; PEL : Z.'JMo/MJ; TLV: 2. GM,,/M3(CEILING). PHCSPHONIC ACID.(1-FY CRCXYtTHYLIJINE)8(S-***HECP;CAS 12809-21-4;EYE IRRITANT ; PEL: NONE ;TLV :,\C.\E. SECTION 2-------------------------- TYPICAL PHYSICAL DATA PH: AS IS (APPROX.) 13.0 FL.PI(CEG * F): >200 SETA(CC) VAPOR PPESSLP E(-IMhG) : 19 VI3C CPS70F: 24 EVAP.RATE: <1 ETHER=1 PHYSICAL STATE: LIQUIC CDCR: MILD SP.GR.l 70F )CR DENSITY: 1.193 VAPOR OENS IT Y f A IR=1J: <1 4SQLUfiILITY(wATER): 100 APPEARANCE: LIGHT YELLCh FREEZE POINT(DEG.F): 23 SECTIU1 3--------------------------- REACTIVITY DATA- STAdLE THERMAL CECCMPCSITlLN (DESTRUCTIVE FIRES) YIELDS ELEMENTAL CXICES. CONFIDENTIAL D0 0037AS ddTZ MATERIAL SAFETY DATA SHEET (PAGE 2 CF 3) PRODUCT : BETZ CCP 1 5 ----------- SECT IC.N <--------------------------- ht^LTh HAZARD EFFECTS-----------------------------------------------------------CUT SMN EFFECTS ** PRIMARY SCUTE OF EXPOSURE - GLIGHTlY IBkITAUnC TC The SKIN ACUTE EYE EFFECTS *** MODERATELY I kR I T A T ING TO TFC EYES ACUTE RESFIRATCRY EFFECTS *** MIST3/AERUSLL3 HAY CAUSE IRRITATION TC UPPER RESPIRATORY TRACT CHRONIC EFFECTS OF CVEREXPCSURE* * * PRCLCNGEC OR REPEATED CONTACT MAY CAUSE PRIMARY IkRITANT DERMATITIS. MEDICAL CCNJIT 1U N S AGUkA V.4 TED *** NCT KNCwN SYMPTOMS OF ExPOSURt *** MaY CAUSE FcJNESS OK ITCHING CF SKIN* PRECAUTICNARY STATEMENT BASED CN TESTING RESULTS *** MAY 3E TuX [C IF CRALLY INGESTED. ----------- SECT I Gw 5----------------------------- FUST AID INSTRUCT I CN S-------------------------------------------------------SKIN CONTACT*** REMOVE CO-NT A UNITED lLCTHING .WASH EXPOSED AREA WITH A LARGE QUANTITY SCAP SOLUTION tU wATE FCR IS MINUTES EYE CONTACT*** IMMEDIATELY FLUSH EYES KITH WATER FCF 15 MINUTES.IMMEO I ATELY CONTACT PHYSICIAN Few ADDITIONAL TREATMENT (HALATION EXPOSURE*** REMeVE VICTIM FROM CONTAMINATED AREA TC FRESH AIR.APPLY APPROPRIATE FIRST AIC TREATMENT AS NECESSARY INGE STICK*** DO NOT F tie J ANYThING 6Y MCUTrl TC AN UNCONSCIOUS CR CONVULSIVE VICTIM DC NCT INDUCE VOMIT INC.IMMEC.CONTACT PFYS ICI AN.01LLT CONTENTS CF STCMACF USING 3-4 GLASSES MILK CR WATER CF A ------------SECTION fc--------------------------- SPILL*DISPOSAL AND FIRE INSTRUCTIONS---------------------SPILL INSTRUCTIONS*** VENTILATE AKe^ USE SPECIFIED PROTECTIVE ECUIPMENT.CCNTAIN AND ABSORB ON Ai-SOP.HENT MATERIAL.PLACE IN WASTE DISPOSAL CONTAINER. THE WASTE CHARACTERISTICS CF THE AESCP3ED MATERIAL,CF ANY CGNTAMINATED SOIL, SHOULD BE DETERMINED IN ACCORDANCE WITH RCRA REGULATIONS. FLUSH AREA *ITh CATER.WET AREA MAY BE SLIPPERY.IF SC,SPREAD SANC CP GRIT. DISPOSAL INSTRUCTIONS*** WATER XONlUUtl-NA TED WITH THIS PRODUCT MAY BE SENT TC A SANITARY SEWER TREATMENT FACILITY,IN ACCORDANCE WITH ANY LOCAL AGREEMENT,A P ErlM 17 T10 HASTE TREATMENT FACILITY CR CISCFARGEC UNCER A NPDES PERMIT PwLCLCKAS IS)InCINERATE or bury in approved landfill FIkE EXT INGLISFING INSTRUCTIONS*** firefighters should wear positive pressure self-contained breathing APPARATUS!FULL FAlE-PIECE TYPE). DRY CHEMICAL,CAKdGN C ICX IDE,FCAM CR WATER 00374'' DO BtTZ WTEkUI SAFETY DATA SHEET (PAGE 3 CF 3) PRODUCT: ECTZ CLP 165 ,,-------- SECT l CM 7--------------------------- SPECIAL PROTECTIVE ECU IP MEN T------------------------------------------ VENTILATION PRCT ECT IOM** ACEQLATE VENTILATION TC MAINTAIN AIR CONTAMINANTS BELCW EXPOSURE LIMITS RECOMMENDED RESPIRATORY PROTECTION*** IF VENTILATION IS INACEuUAT E UR SIGNIFICANT PRODUCT EXPCSURE IS LIKELY# USE A RESPIRATOR wlTF CUST/KIST CARTRIDGES RECOMMENCED SKIN FhCTtCTICN*** RUBBER GLOVES REPLACE AS NtCESSARY RECOMMENCED EYE K-iUT ECT ICN*** SPLASF PROOF ChEMICAL GOGGLES ----------- SECTION 3----------------------------STCKAGE AN0 HANCLING PRECAUTICNS-------------------------------- STORAGE INSTRUCTIONS*** KEEP CONTAINER CLCSiC PROTECT r RG v FREEZING HAN Cl InG InSThUlrI UNS** * IM MED I AT tL Y REMOVE CCNTAM TivATED ALKAlInE.GC NCT MIA WlTF ACICIC CLOTHING.WASH MATERIAL. dEFQRE REUSE ----------- SECT iC\ 9--------------------------- FEDERAL REGULATIONS----------------------------------------------------------------- iHAI29CFR)-f:f RcSFIFATGFY PkCTECTICN USE PROPERLY FIT TEC MSHA/NICSh APPRUVEO RESPIRATORY EQUIPMENT WITHIN USE L IM I TAT IONS . CTFEFW I SE LSE AIR APPARATUS. CWA(90CFR)REPORTAcLE CUANTITY: AS IS PRODUCT (HAZARDOUS SUBSTANCE) 5,3 = GAl 5. I SODIUM RYCFCXIOEI RCRA(90CFR): IF C ISUARDED,THIS MATERIAL BEARS HWl# DCD2 OOTIhSCFRJCLASSIFICATICN: NCT APPLICABLE NFPA/rlMI S : ncALTh - 2 ; FIRE - C i REACTIVITY - 0 ; SPECIAL - AIK SLPPLIEI **4:*4***9$**4ft****4*4*4***4*t4>l>**4>***44*t4*t************************** THIS DOCUMENT IS PROVIDED TC SUPPLY ALL THE INFORMATION NECESSARY TC COMPLY WITH CSHA HAZARD lCMMUM CAT IONS REGULATIONS# AND R IGHT-TC-KNCW RECUIPEMENTS. WHILE THE INFORMATION AND RECCMMENCATIONS SET FORTH HEREIN ARE BELIEVED TC BE ACCURATE AS OF THE CATE FEKCCF, BETZ LAeCRATORIES#INC.MAKES NC WARRANTY WITH RESPECT THERETO AND DISCLAIMS AlL LIABILITY FROM RELIANCE THERECN. __ _ HARCLC Ml. FERSH ENVIRONMENTAL INFORM AT ION CCCRDINATl CONFTDFNTTAL 00 003750 u ( L.. MATERIAL SAFETY DATA SHEET COATED PRECIPITATED CALCIUM CARBONATE Pfizer Inc. Form 21 Product/Material: Manufacturer: Addreae: Emergency Tel. Mo.: Coated Precipitated Calcium Carbonate Pfizer Inc. 235 E 42nd Street. New York. NY 10017 (413) 743-0591 (ADAMS. MA PLANT) Section I - Product Identification Trade Name: Synonym: Chemical Family: Formula: ' CAS Number:11 HMIS: Ultra-Pflex, Super-Pflex. Multifex MM. Multifex SC Calcium Carbonate (Coated) Metal Carbonate CaCO, 1317-65-3 HO FO RO Section II - Hazardous Ingredients None Section III - Physical Data Boiling Point (*F): Vapor Pressure (mm Hg): Vapor Density: Solubility In Water: Specific Gravity (H_0"1): Percent Volatile byweight: Evaporation Rate: Appearance and Odor: Not Applicable Not Applicable Not Applicable Insoluble 2.71 0 0 White Powder, No Odor Section IV - Fire and Explosion Hazard Data Flash Point (Method Used): Non-flammable Flammable Limits: LEL - Non-flammable UEL - Non-flammable Extinguishing Media: Water Special Fire Fighting Procedures: None Unusual Fire, and Explosion Hazards: None Section V - Health Hazard Data Threshold Limit Values: Inert or Nuisance dust - j ; 5 mg/Ms respirable (ACGIH & OSHA) 10 mg/M* total dust (ACGIH) 15 mg/M* total dust (OSHA) Effects of Overexposure: May cause aiechanlcal Irritation to eyes and respiratory tract. Emergency and First Aid Procedures: Wash dust from skin with soap and water. Flush out eyes with generous amounts of water for at least 15 minutes. See a Physician. CONFIDENTIAL DO 003751 / Coated Precipitated Calcium Carbonate Page 2 Section VI - Reactivity Data Product la atabla but decomposes at 600* liberating COj Incompatibilityt Nona Hazardous Decomposition Products: None Hazardous, Polymerization will not occur. Section VII - Spill or Leak Procedures Steps to be Taken In Case Material la Released or Spilled: Normal clean-up procedures. Care should be taken to avoid causing dust to become airborne. Vacuum cleaning systems are recommended. Waste Disposal Method: Disposal must be made In accordance vlth Federal, State; and local regulations. Section VIII - Special Protection Information Eye Protection (Use Most Appropriate): Safety Glasses, Goggles, Face Shield. Skin Protection: Leather or rubber gloves. Respiratory Protection: Use of dust respirator Is recommended when exposure limits may be exceeded. Ventilation: Local exhaust ventilation to collector or containment recommended to control dust to beloJ exposure limits. Section IX - Special Precautions Good Industrial hygiene practice requires that employee exposure be maintained below the recommended TLV. This Is preferably achieved through the provision of adequate ventilation where necessary. Where dust cannot be controlled In this way, personal respiratory protection should be.employed. Prepared by: M. G. Larson Revision Date: 8/85 NOTICE: Tbs data and recommendations presented herein are based upon data which Is considered to be accurate. However, Pfizer makes no guarantee or warrenty, either expressed or implied, of the accuracy or completeness of these data and recommendations. .* confidential DO 003752 Sample: DOW SAMPLE 36 Size: 19.53 mgJ>* Rate: 20/M IN 30-600.C SGML AIR TG A Date: 2-Sep-87 Time: 9: 48: t File: D0W36. 01 TGA0587 DuPont 109 r Temperature CC) U ) ]C--------- C O N F ID E N T IA L - DO 0 0 3 7 5 4 Sample: DOW SAMPLE 20 Size: 16.43 mg Rate: 20/M IN 30-600C.50ML AIR Program: General Analysis VI.0 140-1--------- 1---------1---------1--------- 1--------- 1--------- 1---------1--------- h 120- TG A 3 Date: l-Sep-87 Time: 14:18:18 File: D0W20.01 TGA0587 Operator: K J DUKE Plotted: 1-Sep-87 15:29:25 14C ,, - 12C 100-- " 100 (%) 80-- -- 80 C------- ] 60- 40-- -- 60 -- 40 C0NFTDFNT1AL HO 0037S5 20-- -- 20 --or r H---------H c t 0 100 200 300 400 500 600 700 800 900 1000 1100 Temperature (C) DuPont 1090 1 . sample: CROWN W/C 3..1188 - Size: 20.57 mg Rate: 20C/MIN 30-600 AIR 50ML Program: General Analysis VI. 0 TG A Date: 22-Jun-B7 Time: 16:12:< File: CRNXU63003. 01 JAK Operator: KJ DUKE Plotted: 25-Jun-87 13:07:10 C O N F ID E N T IA L Temperature (C) DuPont 10S J: J0 20 30 FIQ -5" A/tC 335, L'pe - SELF-HEAT RATE VS. TEMPERATURE PLOT 41 S3 50 M 7 M 100 120 140 100 100 200 220 240 200 290 300 350 400 450 99te00,.a00s 70.0 60.0 50.0 4a e 3a 0 20.0 iao 9.9 ao 7.0 aa 5.1 4.0 at 2.0 HEAT RATE C/MIN at. a9 as a7 ao as L4 aa aa aa i 09 0.09 ae? aee a os a 04 a 03 0.02 aoi 00 003757 CONFIDENTIAL CSCALEtI/T K> i c i'irtR A i urvc.. I- R.G. Carlson 2030 WHD Center id cc: R.L. Glomski J.M. West tyrin* CPE Dust Explosion Potential This letter is in response to your question about the explosion potential of TYRIN CPE products dried in the presence of calcium stearate (Cast). Previous production plant problems related to Cast dust explosions occurred in the blender area, although dryer fires have transpired in unrelated situations. The 1981 blender incidents were caused by a failure to terminate the flow of CaSt into a blender after the dryer resin feed was stopped. A redundant interlock system is planned for the new fluid bed design to prevent feeding calcium stearate when TYRIN CPE resin is not being fed to the dryer. Pre-blending of the CPE-CaSt mixture before feeding into the fluid bed will help keep Cast dusting to a minimum. Retention data indicates that, by pre-blending the CPE-CaSt mixture, very little free Cast will be available to form explosive hazards. In addition, Cast will not be added directly to the blenders in the new post-dryer addition system. The new system will blend 1.0-1.5% Cast into the dried TYRIN-CPE resin just before final packaging. Previous dryer fires have been attributed to "hot spots" that result from resin build-up within the fluid bed dryer. Calcium Stearate has been shown to significantly reduce the amount of dryer build-up, and combined with frequent inspections, will decrease an ignition source hazard. Other precautions that will be incorporated into the new fluid bed dryer design to minimize explosive potentials are, the proper grounding of all equipment and, the use of non-conductive filter cloth in blender filter systems. The majority of recent explosion potential work has been coordinated by TYRIN CPE production personnel, in preparation for the upcoming post-blender calcium stearate addition system, and in response to the 1986 fluid bed dryer fire. The Chemicals and Elastomers R&D group of LAS&TL has also generated a significant amount of data relative to calcium stearate retention on TYRIN CPE particles in support of this effort. One key reference is a report written by W.L. Young (LAD 678) entitled "Calcium Stearate Retention by CPE 3615 in a Simulated Fluid Bed". This report concludes that at or below 1.5 phr, calcium stearate forms an intimate incorporation with the TYRIN CPE resin. Specific data states that 91.8-94% of calcium stearate is retained on the resin after fluidization. In 1986, Erhard Gillessen of DCE (working in LAS&TL), designed an experiment to further study the retention of calcium stearate. Resin was blended with 2 phr calcium stearate and fluidized for 4 hours at 60 C, then subsequently fluidized at ambient temperature for 5 hours. The results showed an 84.4% r tention f calcium stearate onto the TYRIN CPE particle. This compares favorably with W.L. Y ung's results at 3 phr calciur -earate (84.3% retention), and supports the conclusion that once the CPE - Cast incorporation is formed, it cannot be readily broken. ,, DO 0 0 3 7 5 9 C O N FID E N TIA L Frank Mark of DCE (Stade R&D) conducted drying trials at a European fluid bed dryer manufacturer, Sulzer Escher Wyss. These trials used water washed TYRXN 3615 resin with a 50% aqueous solution of calcium stearate as the dryer anti-block. Results showed 98-99% retention of the calcium stearate at 0.5 phr and 2.0 phr levels. Dust explosion data has been generated on a variety of TYRIN CPE resin types, particle sizes, and calcium stearate concentrations, by Midland's Analytical Laboratories group. Results can be summarized as follows: 1. Pure calcium stearate has a Kst of 273 and a minimum energy (M.E.) of 0.125 J at 0.75 oz./cu.ft. (Explosion Class->2-3). 2. TYRIN CPE fines (<200 mesh) have a Kst of 11-13 (Explosion Class-l). 3. Other TYRIN CPE particle size ranges give Kst values of 0-36. 4. Blends of 20% calcium stearate and 80% (<80 mesh) CPE give a M.E. - 0.125 J at 0.75 oz./cu.ft.. 5. Blends of 13% calcium stearate and 87% (<80 mesh) give a M.E. > 20 J (Dusts with M.E. > 20 J are generally not considered explosive). 6. Blends of 15% calcium stearate and 85% (<80 mesh) give a M.E. < 20 J. 7. A blend of normal size resin and 1% calcium stearate gave a 13 psi maximum explosion pressure at 4000 g/cu.mt. with Kst 1.0 and classifies as a type 1 dust explosive. This blend did not ignite at lower concentrations. in conclusion, a large amount of data has been obtained, and work continues towards defining and eliminating all dust explosion potentials within the process. Production personnel are presently preparing for the first Reactive Chemicals Review for the use of calcium stearate in the fluid bed dryer. Chemicals and Elastomers R&D will continue to support the data generation effort in this area, and will play an active role in designing the new fluid bed dryer system. j.m. Sampson Elastomers Research J.B. Akers Elastomers Research CONFTDFNTTAt DO 003760 December 8, 1987 Bob Armstrong 807 Bldg. l REACTIVE CHEMICALS REVIEW Our records indicate the last Reactive Chemicals Process Review for Poly A __________ _______ was April 23, 1987 . Each plant is required to do a complete process review every 2 years or when a Superintendent change occurs. Please contact me (6283) or Robbie Bagaley (1805) for scheduling. The reviews are usually held on a Thursday at 8:30 a.m. in your plant's conference room. J. Y. Pennington, Chairman REACTIVE CHEMICALS COMMITTEE rcb TO' o DO 0037 From: To: Subj: 11-DEC-1987 10:40:28 LARNDC::PENNJ J.PENNINGTON.LASTL,504-389-6283 LACSDC::ARMSTRONG,PNNJ NEW SUPERINTENDENT REACTIUE CHEMICALS REUIEW FOR POLY A BOB, AS YOU KNOW, THE CORPORATE GUIDELINES FOR REACTIUE CHEMICALS REUIEWS REQUIRE A PROCESS REUIEW WITHIN 3 MONTHS OF A SUPERINTENDENT CHANGE. OUR LAST PROCESS REUIEW FOR POLY A WAS IN APRIL OF 1987. SINCE YOU ARE PROBABLY AS FAMILIAR WITH THAT PLANT AS ANYONE IN THE DIUISION, I AM WONDERING WHETHER WE REALLY NEED TO DO A REUIEW AT THIS POINT. HAUE THERE BEEN ANY MAJOR PROCESS CHANGES SINCE LAST APRIL, OR DO YOU HAUE A NEW PRODUCTION SUPERUISOR OR OTHER NEW PEOPLE WHO WOULD BENEFIT FROM SUCH A REUIEW AT THIS TIME? IF NOT, I AM INCLINED TO JUST WAIT FOR THE NEXT SCHEDULED 2-YEAR PROCESS REUIEW WHICH WILL BE IN APRIL OF 1989. WHAT DO YOU SUGGEST? Press RETURN for more... MAIL> #2 JOAN PENNINGTON 6283 11-DEC-1987 10:40:28 NEWMAIL NEWMAIL CONFTOFNTTAL DO 003762