Document QJKEaeD6ry5Q251Kx8p1JrkVk

Anniston# Alabama Hr. B. L* AH&irw^^ Si. Laois Sr. BdanHE. JSardy -O&n C, orjHr, P^G.^Btalgous - St* Louis Fils SptB4>er 23# 1955 y T-fs%iZ&g^f&.yt -7 -|fea 4>- _w *1,/ ^"''0Vv;- -Wv ^:ifr Me* hotter St.Louis P Tours to Hardy of 9-1-55 WESTIHGHOIEE ELlCmEC CORPCRmCB / Shsrcaa# Pennsylvania 4; Mr. J. Cr. Ford / Our data on the olYectiveneea of d Iphonyl tin diethylate ass an SCI scavenger In halcrpnatcd hydroc^'hon mixtures are Hated below with tbs other compounds requested for ecemerison. m our testa a di electric srade paper ms exposed to a noaeured quantity of 1531 in morteon# In th presence of a scavenger# find the loss in tensile strength of the paper was determined to indicate the relative effectiveness of the scavongars. Scavenger in Inertoen Plain paper# untreated Diphenyl tin diethylate (<0.l$) Jfhenoxypropens oxide (0.1$) Tetraphonyl tin (0.1$) Ho scavenger Tensile Strength Teeto -on Scavengers Pensile Strength i Lose in lb./inch Tensile Strength 46.2 Op cU a y . *t<.5 23.2 0 52 51 31 11.5 100 Diphenyl tin diethylate is not soluble in transformer Inertoen to the extent of 0.1$ by weight. In our .laboratory tests 0.1$ was added and the 03X008 diphenyl tin diethylate uas filtered off after stirring at 75*C. for fifteen minutes. This material is susceptible to slow hydrolysis * therefore# precaution . should be taken in handling and storing the ponder. Our email sample is several years old end we would prefer that Mr. Furd obtain a froeh sample from Metal and Thermit Corporation# 100 Fasti 42nd street# ifew Bark 17# Hew York. It would be hotter to work vithj a fresher and possi bly acre pure sample than we have. V ri:.<' - / ' am/v /- , t f Pf 7A. DSW 550888 v./ / V, STLCOPCB4089305