Document RV67y82dYedpMgENxongv11a
Physical Properties
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*AROCLOR 1242
AROCLOR # 1262
*AROCLOR 1248
*AROCLOR 1269
*AROCLOR 1254
AROCLOR # 4465
*AROCLOR 2565
Manufactured by
Monsanto Lhemicil Lompany
Bt.Louib.U.SJI.
Nw York--Borlon--Chicago--Son Frtncltco Cleveland--Birmingham--Montreal--London
Attachment 3-4
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The ^Aroclors
THE Aroclors have won a prominent place in the field of syn thetics with unique properties to fill requirements not met quite perfectly by materials heretofore available. They have found wide usefulness in fields where their properties are of especial value.
Following is a description of the properties of seven Aroclors, each of which is representative of a series. There are other Aroclors with slightly different characteristics in each of these series.
A study of this brief description will suggest means of em ploying the Aroclor in perfecting still other products, develop ment of which has been delayed by the lack of a material that exactly fulfills particular requirements.
cA Description of the Aroclors
The Aroclors vary from water-white mobile oils and pale yellow viscous oils to light amber resins and opaque crystalline solids. For each of these light-colored Aroclors there is a cor responding gray or brown-black grade.
The Aroclors are produced exclusively by Monsanto Chem ical Company.
Non-Flammability
The viscous Aroclor oils and the resins do not support com bustion when heated alone even at their boiling points--tempera tures above 350C. Most of the Aroclors flux readily with resin ous and pitch-like materials to give a product having a decreased fire hazard. When incorporated in nitrocellulose films the Aro clors retard the rate of burning.
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Electrical Properties
The Arodors have extremely interesting electrical character istics; high dielectric constant, resistivity and dielectric strength, and low power factor.
Solubility
The Aroclor oils and resins are easily soluble in most of the common organic solvents and drying oils. The hard crystalline materials are in general less soluble than the Aroclor oils or resins. All Aroclors are insoluble in water. For more complete informa tion see the attached table. Compatibility data on Aroclors in nitrocellulose lacquers will be sent on request.
Adhesiveness
The Aroclor resins adhere strongly to smooth surfaces -- to glass and metal or to smooth varnished or lacquered surfaces.
The softer Aroclors are suggested for difficult adhesive prob lems where a flexible non-drying waterproof material is necessary.
The Aroclor adhesives are thermoplastic; are readily applied hot without solvent; do not require high temperatures for easy application, and arc set immediately upon cooling.
Thermoplasticity
The Aroclors are permanently thermoplastic. They appar ently undergo no condensation or hardening upon repeated melt ing and cooling. The clear Aroclor resins are now being pro duced with softening points up to 110C. The opaque crystallinesolids are produced with initial melting points up to approxi mately 180 C.
Non-Drying Properties
The Aroclors are non-drying, and when they are exposed to the air, even in thin films, no noticeable oxidation or hardening takes place. However, when used as ingredients of lacquers, they do not retard the rate of drying of the lacquer films. Quick drying varnishes and paints may be made with Aroclor resins.
Vaporization Loss
The Aroclors have low vaporization losses as shown in the data in the table of physical properties.
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Table of Physical Properties of the Aroclors
Aaocuia 1242
Akoclor 1248
Aroclo 1254
Aroclob 1262
AROCLOR 1269
Aroclor 4465
AroCLOR 2565
Description (at room temperature)
Color (1" depth of Arodor)-- Lovibond yellow No. 610
Pour Point C., (A. S. T. M. Method) Softening Point C.; (A. S. T. M.) Initial Hold Point in Freezing Curve (C.)
Condition at 0C.
Practically WaterWhite Mobile Oil
0.1 to 0.5 --17.7 to --20.7
Practically WaterWhite Mobile Oil
0.1 to 0.6 --9
Pale Yellow Viscous Oil
Light Yellow
Soft Sticky Clear Resin
0.5 tc 1.0 8.0 to 12.6
n
0.5 to 1.2 34.9 to 38.0
Viscous Liquid
Viscous Liquid
"Soft Sticky Resin
Hard Brittle Resin
Distilling Range (C.; A. S. T. M. Method)
311 to 356
330 to 360
352 to 381
Specific Gravity At 25C./25C.
Per Cent Increase in Volume Upon Heating from 25C. to temperature specified
Approximate Average coefficient of Expansion over range specified (cc./cc./C.)
Pounds per Gallon at 25C. (Average)
Decimal Part of Gallon Bulked by One Pound
1.374 to 1.393
2.71 25 to 65C.
0.000678 25 to 66C.
11.60
0.0869
1.446 to 1.466
26 to 66C.--2.82% 25 to 250C--18.56%
0.000702 25 to 65CC.
12.06
0.0829
1.643 to 1.550
2.64 26 to 66C.
0.000661 26 to 66 C.
12.66
0.0778
Viscosity (Seconds Saybolt) at 210F.
34.0 to 34.6
36.0 to 37.0
46.0 to 47.7
Viscosity (Seconds Saybolt) at 100F. Flash Point C., (Cleveland Open Cup)
Fire Point C., (Cleveland Open Cup)
Refractive Index for D-Line at 20C. Maximum Acidity (Milligrams KOH per
Gram) Per Cent Loss on Heating (A. S. T. M.)
81.1 to 93.1 176 to 180 334 to None at Boiling Point of Lkj* :d 1.627 to 1.629
0.01 3.04 to 3.64
200.0 to 210.0 196 None
1.630 to 1.631
001 3.0 to 4.0
1800 to 2400 No e Noe
1.6407 to 1.6410
001 1 06 to 1.28
373 to 404
1.646 to 1.653 4.16
26 to 90C. 0.000640
26 to 90C. 13.71 0.0729
90.0 to 103.0
None None 1.6601 to 1.6617
0.02 0.48 to 0.56
Cream-Colored Opaque Hard Crystalline Solid
Pale Amber Transparent Resin
Brown Black Opaque Resin
4.3 to 6.4
235 to 246
Same as at Room Temperature
60 to 66
Same as at Room Temperature
Too High for A. S. T. M. Method;
Can Be Distilled at Atmospheric Pressure
Too High for A. S. T. M. Method;
Requires Vacuum for Distillation
68 to 72
Same as at Room Temperature
Too High for A. S. T. M. Method;
Requires Vacuum for Distillation
1.870 to 1.876
15.60 .0641 Solid Solid None NoTM
1.712 to 1.723
1.723 to 1.740
2.46 25 to 65C.
2.62 26 to 65C.
0.000611 26 to 65C.
0.000656 25 to 65C.
14.28
14.41
0.0700
0.0693
Too Viscous to
Too Viscous to
Determine with Saybolt Determine with Saybolt
Apparatus
Apparatus
Nooe None 1.664 to 1.667
None None
0 10 to 0.20
0.02 0.23 to 0 29
1.26 0 21 to 0 24
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Toxicity
Experimental work in animals shows that prolonged exposure to Aroclor vapors evolved at high temperatures or by repeated oral ingestion will lead to systemic toxic effects.
Repeated bodily contact with the liquid Aroclors may lead to an acne-form skin eruption.
Suitable draft ventilation to control the vapors evolved at ele vated temperatures, as well as protection by suitable garments from extensive bodily contact with the liquid Aroclors, should prevent any untoward effect.
Odor and Taste
The solid Aroclor resins are almost without odor and taste at ordinary temperatures.
The Aroclors are remarkably resistant to the action of either hydrolyzing agents or high temperature. They are not affected by boiling with sodium hydroxide solution. Because of their sta bility to heat, the Aroclors are useful heat-transfer media. Aroclor 1254 and particularly the less viscous Aroclor 1248 are recom mended for this purpose because they may be heated at tempera ture up to 325C. (617F.) in a closed system for long periods without appreciable decomposition and are at the same time non flammable.
Action on Metals
The Aroclors are non-corrosive. Mild steel exposed to the action of Aroclor 1254 or Aroclor 1248 in a closed system at 325C. (617F.) for 848 hours showed no pitting and the corrosion rate, as measured in inches of penetration per year, was 0.0021.
Water and Moisture Proofness
The Aroclors are water proof. When impregnated into porous rigid bodies they are effective water and moisture proofers. Special Aroclor compounds are available for moisture-proofing such articles as paper and radio resistors and for water-proofing articles such as abrasive wheels.
STANDARD CONTAINERS
yut. isrumi
Aroclor...............................--................ ....................
1242
5001bs.net
Aroclor.......................... ...........-.............................
1248
5001bs.net
Aroclor...... -......................... .....................................
1254
5001bs.net
Aroclor.--.........................._........--.........................
1262
500lbs.net
Aroclor........... ............ ............................................
4465
500 lbs. net
Aroclor................................ .....................................
2565--drums, 395 lbs. to
426 lbs. net.
Aroclor...................................-............................ ....
1269--bags, 200 lbs. net.
barrels, 400 lbs. net.
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Solubility of the ^Aroclors In Various Solvents
(Figures Represent Grams of Aroclor per 100 cc. Solvent)
Type of Solvent
Aroclor 1242
Cold
Hot
Chloro Derivatives Chloroform ................... ............ S*
Carbon Tetrachloride................. S Ethylene Dichloride................. .. S Trichloro Ethane...... _............... S
Tricholoro Ethylene................... S Tetra Chloro Ethane.......... -- S Mixed Amyl Chlorides.............. S Mono Chlorobenzene................. S
S* S S S S S S S
Akoct.or 1254
Cold
Hot
S S* Ss
Ss
Ss Ss ss ss ss
Ketones Acetone.............
--S
sss
Aldehydes Formaldehyde (40%)--__ ____ I* I* I* I*
Furfural..... ............... -.............. S s s s
Amines
Aniline........... _......--............--- S
s
Pyridine--....................... -- 132.5@30 C. 440@99C.
s U4@31C.
s 425@100'
Drying Oils
Tung Oil..................
--S
S
s
Linseed Oil---------------------------- S S s
Acids Acetic Acid----------------------------S Oleic Acid----------- ------------------S
Ss Ss
Miscellaneous
Nitro Benzene......... ........... -- S S s
Carbon Disulfide-------------------- S S s
Water I
II
Note: S signifies very soluble or miscible in all proportions. I signifies insoluble. P.S. signifies partially soluble.
S S
S S
S S I
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Solubility of the ^4roclors In Various Solvents
(Figures Represent Grams of Aroclor per 100 cc. Solvent)
Type of Solvent
Hydrocarbons
Mineral Spirits............. Gasoline....... ................ Kerosene........... ............ Paraffin......... .............. Benzene______________ Toluene......................... Xylene.................. ......... Turpentine................ .... Pine Oil........ ................
Hydroxy Derivatives Methyl Alcohol_______ Ethyl Alcohol (Formu Normal Butyl Alcohol Amyl Alcohol........ ...... Glycerine....... .......... .....
Ethers
Ether Alcohols Cellosolve___ Carbitol.........
Esters Castor Oil__ Methyl Acetate... Ethyl Acetate-- Butyl Acetate... Amyl Acetat?_______ Ethyl Lactate_______ Diethyl Phthalate___ Dibutyl Phthalate___
Cotton Seed Oil........... ...... Ethylene Glycol Diacetate-
Aroclor 1242
Colo
Hot
Aroclor 1254
Cold
Hot
. s* s* s* s* .s s s s
ssss -- s@soc. -- S@50C. sssS .s s s s sSss ssss .s s s s
42.5(S)29C.
. 23.3@29C. s
.s I*
194@30C.
88.5@60C.
80.0@70C. S S I
S@99C.
15@26C. 10@27C. S S 1 P.S.*
22.2@65C.
28 @75C. s s I
Slowly Soluble
s Sss s Sss
s 224@31*C.
16.9@23C.
s 307@99C.
19@99C.
s l73@2fiC. 8@30C.
s 2S9@ 98C. 10@100C.
.S s s S sSsS sSs s
.s s s s sss s
.s s s s .s S s s
ssss ssss .s s s s ssss
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