Document gbZd74pKKBJeNvJqM4X76dNNL

... .. ., "'" - 4 L Laboratory Report CAM-263 Cyprus Industrial Minerals Company 555 South Flower Street Los Angeles,. California 90071 Telephone 213) 489-3700 Report No: 80-020 References: Key: _Cyc1osorb Date 01 Report: 1/24/80 Date of Work Request I By: 1/22/80 CRM Copies: HTM, LDOM, .GMMDOFFWWNL,,,.~.:.:x=:.;.:=~.~~, CRM, CJP, Reported By: C.J . -...-Parmentier/M.M .. Kazazian LEF, FILE Approved By: G. J. Gill Classification: Status: Complete as requeesstteeddo0 Subject: A competitive talc sample labeled as, "Cyclosorb". Objective: ,I. ~ .:.. Characterize the talc sample labeled as tl'CCyclosorb". "Crown ZIt is considering buying this prrodduucctt~.. TEST/RESULTS GEB 80.2 325 mesh 99.99% Acid solubles (as CaO) Hegman 2.67\ 6.0 Wate~ soluble substances .05% WNaatter soluble iron Tap Density (Numinco) none 31.6 1lIbbss//fft3 ''- .- _. Scanning Electron Microscope (SEM) study of "Cyc1osorb" talc sample, revealed the presence of fibrous minerals. The fiber particle population density was estimated to be about 5%, however, weight percent from XRDO indicated 3% Tremmoo1lite. Microscopic study revealed that the majority of the fibers present were asbestiform. Transmission Electron Mircroscope (TEM/SAEOD) confirmed the presence of asbestiform CYPR-MA08802-0013 _ -,J .... ... .."'" .' oCt ~ .. Lab Report: 80-020 Cyclosorb -2- M. M. Kazazain/C.J. Parmentie January 24, 1980 Tremolite fibers. Some polygorsgite fibers were also ,observed. ILLUSTRATION QOPF' MICROGRAPHS Micrographs "A" and "B" are representative area micrographs of "Cyclosorb" sample, illustrating fibrous minerals. Micrograph "Cc" is a higher magnification of the fiber observed in micrograph "B" (yellow arrow) Micrograph "0" illustrates the morphology of the fibers at high magnification revealed by the (pink arrows) *See attached CRC report for XRO, PSO, and SA. MMK:cw enc. CYPR-MA08802-0014 CYPRU S . -~------------------------------------------------------------------------------------------------------------------------------------~--~-rr-~_-------------~-------------------~------------------------------------~---------.-.-.~-~~~.-/ -~~:.----.-.------------------------------------ 0 ~ ~ ~ ~ )0 ~ /J.t'~.i,. (C.o)) '"I'( () I 0 C~It 4t ..:'~-' ~ -e -~ CYPR-MA08802-0015 0 u .. . ....., ...w:" "~ ...... ."O,J' .~, ". Laboratory Report Cyprus Research Company 2435 Militlary Avenue West Los Angeles., California Telephone 213) 478-0462 Filing No. 80-0023-CIMT-LA Key: Cyclosorb 0'Date of Report: 1/24/80 Datle of Work Request I By: 1/22/80 Reported By: R.C.CLOUD/P. COLVILLE Approved By: L.E. FERREIRA~t~ Status : COMPLETE Subject: Cyclosorb References: 80 007 80-020 . c. CoOppiIe8sS: ??Mvvii. KAZAZ I AANNv,~ R. C. CLOUD ~~ P. COLVILLE, FILE Classification: Objj~~cctltiive: X~RRDD,, P:S~DD ,I SA ~..:: Results X-ray diffraction analysis: Talc >80 % Mica <10 % Calcite ",5 % Dolomite ",2 % Tremolite 3.1 % Surface area = 4.5 m2/g See attached curve for particle size distribution .~00~~ ~~C~O.L.VI.I#LlLEle/IRl.C:ee. ~:C~L~O~..wUD// PC/RCC/bb ..'\ ,.0 CYPR-MA08802-0016 .. . ....,(tI:Jd. .., .~ I Z I u0(,,) CI) z0;t=: '.-. I1 -i I1 :;;> (J) 0 <n.. cC aQ: -' W\ji\ ll;.~s )u;\-~:.::j': -'. N 0, 0~(U,,) , i j. , !i - Ii "---,I >- I -'\: - ....uu((..,,..,,...)).. ,. .t- I" t) 0 :>. C'"iI tU.) :t: 0 ULIJ ,a0.--..:-J-J.: -...<: UJ SAMPLE IDENTIFICATION <:~ 0 z 0 rM-I Cyclosorb 0en ..c0 fJ..II .I E-t; ! 0 8!CtoO ." 1"' PAJrtlCLE SIZE DISTRIBUTION .' .~. 80. T_0-07 - --__ . ... .. .... ...-----.--------------~.- U C) -.uu:u::: ~ lC Z to-- ...m><:) ?: ';u':; c: C'"iI Density 2.75 -g/ee (,,) uu(,,) ::a0o:::J>: :::::;i I J I I I I1I I I I !I ,.LIQUID _____ H2 0 ~ ________ Ocnsity .-_ _ ._.~ o/ec I ~ <n Q -I ~ cCo. 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" '. tf.' .{. ; .,' . .... \ ;. ;::... .', . r r. .-.~. ..,.'.:-~.. -' -'::':;, :.:.... . ' . . .. ..1 . -. CYPR-MA08802-0017 ( .; rrmrl Ill~ ' . '. . ,' .~ ' I ~'i,. : ': - : . . , .j '' . ; . ' . . 'f ~."n.~l.CI',''i''O~r.i'''nt'e,l..'r\1f'nl"i,~l!::)ut-~jsnn~' '" .'; .\ . 1'1 ~, . ' .~. .' ; .1 .; ", . . EaUIVALENT SPHERICAL DIAMETER, lJlll t .~ .: . ~: ' ~~'~~' ! "' . ~ " , .-..~ .:! ,', . J.~': : ::" walter c. me crone associates, inc. CONSULTING:: ULTTRRAAMMIICCRROOANALYSIS MICROSCOPY SMALL PARTICLE PROBLEMS SOLID-SSTTATE CHEMISTRY 18 March 1980 Mr. Joseph Blashka Crown Zellerbach Camas, Washington 98607 Dear Mr. Blashka: At the request of Mr. Gordon Gill of Cyprus Minerals II am submitting a revised version of my report of 11 March 1980 which will clarify the position with regard to the fibrous trermnolite detected in your talc sample, C-Z, Camas. Yours sincerely, RME:gb Ref: MA 8802 cc: Lou Murino Gordon Gill Richard M. Ellis, Jr. Research Microscopist 2820 SOUTH MICHIGAN AVENUE. CHICAGO,, ILLINOIS 60616 312/ 842-7100 CABLE: CHEMICRONCEYPR-MA08802-0018 walter c. me crone associatesl inc. CONSULTING: ULTRAMICROANALYSIS MICROSCOPY SMALL PARTICLE PROBLEMS SOLID-STATE CHEMISTRY 11 March 1980 Mr. Joseph Blashka Crown Zellerbach Camas, Washington 98607 Dear Mr. Blashka: I have completed my asbestos analysis of talc sample C-Z, Camas. The sample was examined using transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The sample was found to contain amphibole fibers, probably tremolite. The amount is less than 10%. Thank you for consulting McCrone Associates. Please call us if you require further information. 'If!!Sincerely yours, f.1fI! ff:,,,I/!1fuu r/iAA,, Richard M. Ellis, Jr. Research Microscopist RME:gb Ref: MA 8802 cc: Mr. Lou Murino Cyprus Industrial Minerals 2820 SOUTH MICHIGAN AVENUE. CHICAGO., ILLINOIS 60616 312/ 842-7100 CABLE : CHEMICROCNYE PR-MA08802-0019 Cyprus Industrial Minerals Company 5565 South Flower Street lLoos Angeles, California 90071 Telephone (213) 489-3700 '. Purchase Order Ship To: Acknowledgement Requested Vendor ,IrWWalter C. McCrone Associates Inc. 2820 S. Michigan Avenue Chicago, IL 60616 L L Invoice in triplicate TTo~: Cyprus Industrial Minerals 555 S. Flower St. Los Angeles, CA 90071 Attn: International Dept. Date I/ 1-11-80 Quantity Ordered Quantity Received Ship Via .. Description Date Required Terms - Unit Price Total 1 Talc sample C-Z, Camas. Determination for asbestiform content with special attention to fibrous tremolite. Report results directly to: Mr. -' Joseph Blashka Crown Zellerbach Camas, WA 98607 cc results: Mr. Lou Murino Cyprus Industrial MMiinn~erraallss 555 S. Flower St. .. Los Angeles, CA 9007 .-.----""-"'-"" .c 36955 Above order number must appear on all papers and packages relative to this order., ,CYPRUtlS CYPR-MA08802-0020