Document aBVz8okOdJ5bEG8bV47KanB79

Monsanto FROM (NAME & LOCATION) St. Louis - Genercil Office DATE = March 17, 1969 subject reference : REGIONAL WATER QUALITY CONTROL BOARD : tte r to you of March 7 from Mr. Fred H. Dierker TO :Th. S. Bergen - HBERG r About Aroclor used in the dielectric area, we respond to items 4, 5, 6, and 7 of Mr. Dierker*s letter as follows: 4) The solubility of Aroclor in tap water at 25 C. is as follows: Product Solubility in Water t & Aroclor 1242 Aroclor 1248 Aroclor 1254 203 i 10 ppm 106 t 14 ppm 50 1 2 ppm Although the solubility of Aroclor 1260 has not been determined, the above data certainly serves to indicate that the more highly chlorinated Aroclors such as 1260 are the least soluble in water. Accordingly, it is quite reasonable to say that the solubility of Aroclor 1260 in water would be significantly lower than 50 ppm. 5) Aroclor 1242 and a small amount of Aroclor 1254 are used in hermetically sealed capacitors. The hermetically sealed can construction is of aluminum, mild steel, and stainless steel. These capacitors are used imbedded in asphalt in fluorescent lighting systems. They are used for power factor correction on utility lines. They are also used as motor run capacitors for air conditioning systems. Attached are the specifications for Aroclors 1242, 1254, 1248, and 1260, which describes the physical properties of these materials. Aroclor 1260, and to a lesser extent Aroclors 1242 and 1254, are used as components in transformer fluids of the askarel type. In general, the amount of Aroclor used in the trans formers fluid ranges from 45 percent to 60 percent. DSW 201090 STLCOPCB4059154 H. S. Bergen -2- March 17, 1969 On the West Coast in 1968, about 300, 000 pounds of Aroclor was contained in the transformer askarel fluid used in that region to make transformers. These askarel transformers are also hermetically sealed, non-breathing apparatus. Very little of the fluid is used to replace spent fluid. Askarel trans former failure that would require replacement of the fluid is very rare. For example, the Edison Electric Institute found that the incident of such failure is in the range of 0.05 percent. 6) No Aroclor capacitors are made on the West Coast. Transformer manufacturers on the West Coast who handle Aroclor containing fluid include: Federal Pacific - Santa Clara, California Hill Magnetics - Redwood City, California H. K. Porter - Bellmont, California Sierra Transformer - Redwood City, California Spokane Transformer - Spokane, Washington 7}/ In the normal use of capacitor or transformer fluid / containing Aroclor, Monsanto advises the capacitor and transformer manufacturers to avoid breathing vapors that would be emitted from the fluid if it were heated to elevated temperatures. Monsanto also advises the user of the fluids to avoid continu ous contact with the skin. If clothing becomes saturated, the workman is advised to launder it before wearing it again. If there has been spillage on the skin, it should be removed by washing with soap and water. Normal, ordinary good housekeeping practice is recommended. \ Normal filtration of the fluid as done in the electrical \ industry has not presented health hazard provided ' that ordinary normal cleanliness is followed. DSW 201091 STLCOPCB4059155 H. S. Bergen -3- March 17, 1969 The amount of Aroclor dielectric fluid discarded is indeed relatively small. However, such relatively small amounts have been discarded in drums by removal to dumping areas. In rare instances, when a significant amount has become available for disposal, Monsanto practices having the fluid sent back to our plant for reworking and reuse in non-electrical areas. We would suggest answering Mr. Dierker's questions about Aroclor dielectrics in accordance with the above. As he also seeks our views on PCB materials used in non-electrical areas such as hydraulic fluid, heat transfer media, plastics, etc., may I assume that you have asked people handling those areas to submit their views? /ecd Enclosures P. G. Benignus DSW 201092 STLCOPCB4059156 AROCLOR 1242 (Trichlorobiphenyl) Specification Properties - September 27, 1962 PROPERTY TYPICAL Vise, at 37. 8C. (ASTM D88-56) Specific Gravity at 25/15.5C. (ASTM D1810) Color, APHA Condition Acidity, mg. KOH/g. (ASTM D974, D664) Pour Point, C. (ASTM D97-57) Inorganic Chlorides (ASTM D1821) Refractive Index at 25C. (ASTM D1807) Distillation Range (ASTM D20-56) C. corrected for stem and barometric pressure Water content (ASTM D1533-60) Resistivity, 100C. 500 volts DC at 0. 1 inch gap. (ASTM D1169) Dielectric constant, 100C. at 1,000 cycles (ASTM D924-49) Flash Point, Cleve. open cup (ASTM D92-57)* Fire Point* Sulfates (ASTM D117-31)* Fixed Chlorine Content (Carius)* Specific Heat at 25C.* 82 - 92 seconds Saybolt Universal 1.381 - 1.392 50 max. Clear 0.01 max. -14 or lower 0.05 ppm. max. 1.6ZC-0 - 1.6260 10% 325 min. 90% 360 max. 35 ppm. max 500 X 10^ ohm-cm. min. 4.7 to 4. 9 170 to 200C. None to boiling point None 43 + 0. 5% 0. 29 Evaporation at 100C. for 6 hrs.* Dielectric strength (ASTM D877-49) at 25C. KV min.* Hydrolyzable Chlorine Compounds, (ASTM D1820-61) ppm. chlorides, max. Thermal Stability (ASTM D1936) ppm. chlorides, max. Coefficient of Thermal Expansion* (ASTM D1903) 0. 4% max. 35 0.5 0. 4 0.00068 cc,/cc./C. *Not determined unless by special request. DSW 201093 STLCOPCB4059157 AROCLOR 1248 PROPERTY Vise. @ 54.4C. (ASTM D-88) Spec. Grav. @ 65/15.5C. (ASTM D-287) Color, APHA Condition Acidity, mg. KOH/g. Pour Point C. (ASTM D-97) Refrac. Index @ 20C. Dist. Range (ASTM D-20) Water Content, ppm. Resis. 100C. 500 v D.C. @ 0.1" gap Dielectric Constant, 100C. 1000 cycle Dielectric Strength 25 C.* Plash Point, (C.O.C.)* Fixed Chlorine (Carius)* Specific Heat @ 25 C.* TYPICAL 73-80, sec. Saybolt Univer. 1.4o4T1.4l4 100 max. Clear 0.01 max. -7 I.630-I.631 343 - 373C. 35 500 x lO^ ohm-cm, min. 4.6 35 KV min. 193C. 47.5 - 48.5$ 0.27 *Not determined unless by special request. DSW 201094 STLCOPCB4059158 AROCLOR 1254 (Pentachlorobiphenyl) Specification Properties - September 27, 1962 PROPERTY TYPICAL Vise, at 98. 9C. (ASTM D88-56) Specific Gravity at 65/15. 5C. (ASTM D1810) Color, APHA Condition Acidity, mg. KOH/g. (ASTM D974, D664) Pour Point C. (ASTM D97-57) Inorganic Chlorides, ppm. (ASTM D1821) Refractive Index at 256C. (ASTM D1807) Distillation Range (ASTM D20-56) Corrected for stem and barometric pressure. Water Content, ppm. (ASTM D1533-60) Resistivity 100C., 500 v. D. C. at 0. 1" gap (ASTM D1169) Dielectric Constant, 100C. 1000 cycles (ASTM D924-49) Dielectric Strength 25C.* (ASTM D877) Burn Point (ASTM D92)* Sulfates (ASTM D117-31)* Fixed Chlorine Content (Carius)* Evaporation at 100C. for 6 hours* Specific Heat at 25C. * 44 - 48 secs. Saybolt Universal 1,495 - 1.505 50 max. Clear 0.01 max. 7-12 0. 05 max. 1.6370 - 1.6390 10% 366 - 378C. 50% 371 - 383C. 90% 378 - 394C. 35 max. 500 X 10^ ohm-cm. , min. 4. 15 - 4. 35 35 KV., min. Higher than 350C. None 55 + 0.5% 0. 4% max. 0. 26 Hydrolyzable Chlorine Compounds, (ASTM D1820-61) ppm. chlorides, max. 1.0 Thermal Stability (ASTM D1936) ppm. chlorides, max. 0.5 Coefficient of Thermal Expansion* (ASTM D1903) 0.00066 cc./cc./C. *Not determined unless by special request. DSW 201095 STLCOPCB4059159 AROCLOR 1260 PROPERTY TYPICAL Vise, at 98. 9C. (ASTMD88) Specific Gravity at 90C./ 15. 5C. (ASTMD287) Color, APHA Condition. Acidity, mg. KOH/g. Pour Pt. , C. (ASTM D97) Inorganic Chlorides, ppm. Refractive Index, 25C. Distillation Range (ASTM D20) Corrected for stem and barometric pressure Corrosion 72 - 78 seconds Saybolt Univ. 1.555 - 1.566 150 max. Clear 0.01 max. 25 - 34 0.10 max. 1.6455 - 1.6470 10% 385 - 398C. 50% 390 - 404*C. 90% 400 - 420 C. After heating with aluminum for 6 hrs. at 210C. _+ 10C., the aluminum must not be corroded either on visual or weight in spection and the Aroclor 1260 should meet the following specs: Water content, ppm. Resistivity, 100C. 500 volts at 0. 1" gap Dielectric Strength 50C.* Dielectric Strength 100C.* Dielectric Constant 100C. at 1000 cycles* Burn Pt. (ASTM D92)* Sulfates (ASTM D117-31)* Fixed chlorine content (Carius)* Evaporation at 100C. for 6 hrs.* Stability* Specific Heat at 25C.* Color, APHA Free Chlorides, ppm. Acidity, mg. KOH/g. Condition 35 max. 150 max. 0. 10 max. 0.01 max. Clear 500 x 10 9 ohm-cm. , min. 30 KV. , min. 30 KY. , min. 3.6 - 3.8 Higher than 350C. None 60 + 0.5% 0.2% max. There shall be no liberation of chlorine or chlorides when the material is heated at 100 C. in a glass vessel in contact with air for periods of at least one month. ' 0. 23 *Not determined unless by special request. DSW 201096 STLCOPCB4059160