Document dnkEgMVnVZLmKKa4ZkxyexKRb

October 10, 1969 Nr. Sen NoBoumie Polywer frodaeU IviIimm SeatIon flanernl Bloctrio Co^ugr Moryl Avenue lelklrk, lew Tork 12158 Bear Mr. NaBoumle i Our Boetoo offlee hue uktD ue to forward ooawMnte oonoernlng the toxicity end safe handling of our produet. Aa you probably know, thla Material la a white to offwhite powder nth a aoftaalag point between 150 and 170<>C. Iha distillation rente la 435 to 450C. Theae data Indiante that under only tba aoat aatrwea oondltiana of tenperature ahould there be significant volatiletlon whloh oeuld proaoat any haaard fraa the inhalation of vapors. We do not have ohronle talaal toxloity data on thla particular Aroelor. Bangs finding or aeuta etwdlea lndloate that the oval lethal done m rata la approxlaately 10 grawe (10,900 nllllgraha) par kllogran of body weight* Whan applied to the akin of mbblta aa a 100 eolation la aora oil, the aniaele survived the hlghaat deaa af >,510 ag/kg aitalnlaUred. Theae doaea lead aa ta the eonalualon that Aroelor 101 la not partleularly toale froa the ataadpelnt of acci dental ingoatlaa or aaaalva akin axpeaaro. In eennaetlen with the vapor Inhalation neatloned earlier, we do not have ehronio aniael data for thla particular Aroelor. Baaed on atudlaa on ether aeahera of thla aarlaa of onop ruinda, wa would auggeat that a Throahold Unit Value for eight hoar dally Inhala tion would be betwoon 0.5 and 1.0 nllligraa par oubio water of air. Sue to the phyaiool HONS 088307 Hr. Don Holo^ls Oocobar 10, 1969 Fags Two charaotorlstlea or this ocnpound, wo fool it would roqulrs quit# oxtrons handling or usags conditions to roaah this oanaontrotlon In tho ataosphsrs. Oood Industrial prsotloo, howoror, would dietoto that In applications whoro this typa of ooapound was bolng hsatod, asohanloal axhauat wontl latlon should bo provldod. X hsvo taksn tbs llbortjr of sanding a copy of this lattar to Hr. John J. Firry of your ooapany In Sohonodgady. "Jack" is, X ballots, my oountsrpart with your oospany and Is a psrsonal frland of lone standing. Tory truly yours. Klnor P. Whsolor Hanagsr, Xnvlronaontal Hoaltb DWljW 0.0. John J. Parry b.c. John H. Qannon moms oaa3oa