Document JrQbnRaa2B1zeBBm1gB3ypkda

^ injjvj;, i t-i.*; ^^J.JJ1-. ice --Mr. J. B. Trotter Mr. H. P. Walmsley--Detroit Mr. E. A. MeAdam--Cleveland Mr. D. F. Osenkop--Cleveland 1BJ^B-1^t'^ October 1, 1953 Mr. J. Q. Ford Westinghouse Electric Corporation Sharon, Pennsylvania Dear Mr. Ford: Our data on the effectiveness of diphenyl tin diethylate as an HC1 scavenger in halogenated hydrocarbon mixtures are listed below with the other compounds requested for comparison. In our tests a dielectric grade paper was exposed to a measured quantity of HC1 in Inerteen, in the presence of a scavenger, and the loss in tensile strength of the paper was determined to indicate the relative effectiveness of the scavengers. Tensile Strength Testa on Scavengers Scavenger in Inerteen Tensile Strength $ Loss in . lb/lnoh Tensile Strength Plain paper, untreated Diphenyl tin diethylate (<10.1$) Phenoxypropene o: Tetraphenyl tin No scavenger 46.2 28.0 32.2 18.2 11.5 0 52 51 81 100 Diphenyl tin diethylate Is not soluble in transformer Inerteen to the extent of 0.1$ by weight. In our laboratory tests 0.1$ was added and the excess diphenyl tin diethylate was filtered off after stirring at 75C. for fifteen minutes. This material is susceptible to slow hydrolysis, therefore, prow caution should be taken in handling and storing the powder. Our small sample is several years old and we would prefer that you obtain a fresh sample from Metal and Thermit Corporation, 100 East 42nd Street, New York 17, New York. It would be better to work with a fresher and possibly more pure sample than we have. DSW 550886 STLCOPCB4089303 Weetlnghouse Eleotria Corporation October 1, 1953 Page 2 Please drop me a note if we can be of further help* Very truly youre. PGB/mr p. G. Benignue Aroclor & Special Product Sales \....... OS'N 650881 STLCOPCB4089304