Document 1Q2oZOEj3G4EOQMg8ByaMDROm

/ 0 , j * i .I KKgTIHC WITH MONSANTO Off INERTEEW December 16, 1971 at ft. Louis Monsanto Peoni# Bill Richards Ralph Munch Paol Benlgnus Bill Papageorge Beote Tucker E* f. Wheeler Vestlnchouse Peonie Don Beuter - Bloomington Don McClain - Bloomington Tom Dakin - R & D Center Cordon Caloer R 6 D Center Lyon Macdelkors - R 4 D Center Ed Boqulat - ! Dave Reiser - Boaih Beato T. 0. Munson < Jack Kelley - I. L Bloat - Works Paul Benlgnus opened the meeting end dlacusaed the production end tales of atkarela iron 1960 thru 1971 pointing out that thru the elision* tlon of atkarela for all usee other than treatfox-sera and capacitors their business vet cut fros 65 si11ion pounds in 1970 to 60.4 si 11ion pounds for 1971 (see atteebed chart) The tales ere about equivalent to the 1960 production. Much of the decrease in the fluid for use in electri cal equipment in 1971 has been due to the low capacitor activity. Ralph Munch presented informeLion on the chemistry of the atkarela and their advantages to the electrical industry such aa thermal stability oxidation resistance non*fleasable propertieshigh dielectric constant and corona resistance. The problem of 'environmental pollution fros the polychlorinated biphenyls (PCB's) was first shown in Sweden In the sta^y of DDT. The setbods for the detection of DDT became so sensltlvs that they found other interfering materials which were shown by gee chromatograph and mass spectrograph to be PCB's. Both DDT and the PCB's are chlorinated aromatic compounds and ere concentrated by extractios from suspect meterlala. A abort review wea made of the problems associated with birds and marine life end tbe vest amount of studies that have bean made by various groups to data. Scott Tucker presented information on the analytical procedures used in the enelysla of tbe PCB's end showed a gToup of spectrograms to Illustrate how the various Isomers are identified. Be pent some time then to show the types of testa made by Monsanto to indicate that the lower PCB iBouersp the mono-dl-end tri- will degrade mors rapidly than tbe higher Isomers. The procedure used for teat ia called tbe seml*contlnuous activated sludge method and -uses waste disposal sludge os tbe source of cultures. It requires an elaborate preconditioning L li* LJ 901024 of the sludge before it it Inoculated with the various PCB isomers* They then measure the mount of Aroclor left end calculate the average percent disappearance rate after 46 hour exposure Such values were shown: Pare Diphenyl lac Average Percent D1 appearance late Aroclor 1242 (tri) 421 Aroclor 1016 (tri) 411 Aroclor 1063 (di) Aroclor 1221 (m o ) Aroclor 12S6 ( p o u ) 30X Y \j 211 541 It m at thia polot that I uaatloaed tba atataisent of whether or not Aroclor 1016 la acre biodegrade able than Aroclor 1242 The only answer given vaa that since the higher isomers have been removed iron - - the Aroclor 1242 to aaira Aroclor 1016 it must be are blodegrsdeable* This test is fax froa conclusive* ^^ Tests have been made using two different pure cultures and the general data is siadlar to the semi*cootinous activated sludge nethod Data was presented on dogs and rats which wera fad on, tan and one hundred ppm. of Aroclor 1242 with only alight affects at tbs highest level after 100 days showing that the PCB* s are not toxic* Dr* Munch showed tba following conpoaltioo data on Percent Diehenvl Isomer Aroclor 1242 Aroclor 1016 Pare Diphenyl Msoocblorodlpbenyl Dlchlorodlpbenyl Trlchlorodlpheayl Tetrachlorodiphenyl Pcntachlorodiphcnyl 02 .72 15.6 54*5 22*5 6*7 02 *ts lf.4 64*5 *16 (,4max)* Production Liait The Aroclor 1043 waa suggested as a new material for uae in capa citors. It haa a dielectric constant of 4.65 at 100*0 and a pour point of -45*F. It haa baeo show that sotu 44* dlchlorobiphanyl nay cry#tai ls# at *25#F* It waa felt that the Underwriters Laboratories would not classify this in the flammability range of 2-3 at is tba caae of the other aekarels in use* ff - L 901025 I 4 t 4 m L 0 it: LL n Fit* 5 s' Tbf f^ct^that Che capacitor industry will change to Aroclor 1016 U 1972'tbe'decrease in the higher chlorinated b i p h e n y l s h o w n la the following data* Capacitor Aakarela 1970 Penta j 1972 Penta j Cbloroblphenv1 4 Hither ; Chiorobiphenyl 4 Higher hroclor 1242 aroclor 1254 Total 26.6 million lbs. This table above that by changing to the Aroclor 1016 the capacitor muauiacture will eliminate nearly all the higher chlorinated biphenyl*#, that la the pcntaehlor and higher. Transformer Askarela ----------- JL22S 1970 Penta \ 1972 Penta &Chloroblohcnvl* Hither Chloroblphenyl A Hither Aroclor 1242 Aroclor 1254 Aroclor 1260 6.9 5.5 ixi 15.9 -m 1 3. 5* m e.o ;1 1---------------- h 4 m 7.3 m <L- 7.7 mm . If Veatinghoute had continued to uae PDS 54201KA there would have been an additional 7.0 a oi the Aroclor 1254 uaad or 4.9 a el tha higher chlorinated biphenyls. This would also apply to 1972. The General Electric Co. la expected to continue the use of Aroclor 1254 but eliminate say usage of Aroclor 1260. j Paul Benienua Zn summary Mr. Benlgnus made the following statements. 1. Monaanto intends to continue tbc manufacture of the Aroclora for electrical applications. 2. A further study should be made of the 1.6 million lba. of tha Aroclora that are direct sales to utilities, repair shops, and other users for makeup and repair purposes. 5. Thmanto would like Vestinghouae to help with the effort to keep government agencies, customers and other groups aware of tho facts concerning tha PCI's. L 901026 /f~\ a 1 YEAR 1971 (Est) 1970 1969 1968 1967 1966 196S 1964 1963 1962 1961 1960 PRODUCTION AND SALES POLYCHLORINATED BIPHENYLS (PCB) MONSANTO INDUSTRIAL CHEMICALS COMPANY (SHORT TONS) O.s. PRODUCTION DOMESTIC SALES Electrical* All** Insulating Other Liquids Uses Uses U.S. EXPORT SALES All Uses 20236 42527 38194 41427 37655 32925 30240 25417 22367 20986 20333 20786 14417 20268 18564 20568 20387 18897 16203 13769 11448 11683 11108 12444 4401 16263 15034 11990 10846 10642 9695 8666 7618 7339 7661 5163 4938 6826 5312 5616 4062 3426 2117 2048 1824 1809 2076 1827 Closed Systems - Transformers end Capacitors ** Including Heat-transfer Systems, Hydraulics/Lubricants, Plasticisers L 901027