Document zdr19z88mq8dxEw0vvQERqQ4m

St a n d a r d -Va c u u m Oi l Co mp a n y lOOO We s t c h e s t e r Av e n u e Wh it e Pl a in s , Ne w Yo r k May 9, I960 Dr. Robert A. Kehoe The Kettering Laboratory College of Medicine, Eden Avenue Cincinnati 19, Ohio Dear Dr. Kehoe: IN REPLY PLEASE REFER TO 7670 - Additives Toxicity Tetramethyl Lead It was good to talk with you the other day and I am very grateful for your confidence and also for your very prompt reply with the toxicity data on tetramethyl lead. One of our officials in the organization was concerned about the health aspects of handling the concentrated fluid and I advised him to use the following two paragraphs: "From information developed during the past year about tetramethyl lead, it is quite clear that this presents no more hazards than the handling of tetra-ethyl lead. If the safety precautions now in effect for handling tetra ethyl lead will be continued for tetramethyl lead, there is nothing further that need be done. 11 The volatility of the methyl compound is a great deal more than that of the ethyl compound. It is mandatory that masks be worn when handling concentrated tetra ethyl fluid. It should be emphasized that this precaution is even more important when handling the methyl compound." I think this is adequate but if you have any objections, please let me know and we will change it promptly. Thanks again for your kindness. Sincerely, KRF:gel K. R. Fourcher, M, D.