Joseph Lead Co.

M ueller 0000941 \ 1 0 1 ,0 7 9 S t 3 6 5 This in v en tio n r e la te s to a p ro cess o f s ta b iliz in g lead te tr a e th y l and a n ti-k n o c k m ix tu re s c o n ta in in g th e saiae.

Minister of Labour Si O67997 -4- ATTACHMENT CHEMICALS Group 1 Acetic add Acetone Aniline and homologues 1,2-Benzenedicarboxylic add bis(2-ethylhexyl)ester Borates, tetra, sodium salts (decahydrate) 2-Butanone (Butoxymethyl)oxirane Carbon dioxide Carbon disulfide Carbon monoxide Carbon tetrachloride Carbonyl fluoride Chlorcdifluoromethane Cumene Cyanogen chloride Cyclohexane Cyclohexene Diatomaceous earth, uncaldned (total dust) Dichlorodifluoromethane Al,2-Dichloroethane 1,1-Dichloroethene Diethyl phthalate 1.4-Dihydroxybenzene Dimethyl phthalate 1.4-Dioxane Ethylbenzene Ethylene oxide Graphite, synthetic (total dust) n-Heptane Mineral wool fibre (total dust) Predpitated silica (total dust) Silica gel (total dust) Titanium dioxide (total dust) Zinc oxide dust (total dust) I* SL 067998 m f -5- CHEMICALS Group 2 Asbestos fibres - Amosite Asbestos fibres - Crocidolite Asbestos fibres - Other Cadmium and its compounds (as cadmium) Chromates, dichromates and other hexavalent chromium compounds (as chromium) 2-Heptanone n-Hexane 2-Hexanone Iron pentacarbonyl (as iron) 2-Isopropoxyethanol Lead Magnesium oxide fume Mesityl oxide Nickel, metal and oxides and sulfides of (as nickel) 2-Nitropropane Nonane Octane Oil, mineral - mist Pentane Rhodium, metal and water-insoluble compounds of (as rhodium) Rhodium, water-soluble compounds, incl. chloride, nitrate, and sulfate (as rhodium) Selenium & compounds excl. selenium hexafluoride, hydrogen selenide

Very tru ly yours SW:GCL Enclosure 0009970 \1 A REPORT OH USE and HANDLING o f TETRAETHYL LEAD tv . - ' DOW CHEMICAL COMPAUI, MIDLAND, MICHIGAN ****##- General -- THe purpose o f the follow ing I s to describe b r ie fly the present use and handling o f tetraeth yl lead by Dow Chemical Company a t Midland, Michigan, end to suggest certain recommendations for sore sa fely handling the m aterial.

Lead arsenate_________________ ________ _ 68.

Lead arsenate_________________ ________ _ 68.

Lead arsenate_________________ ________ _ 68.

Joseph Lead Co.

In at least partial compensation for these losses, a vhole nev market vas found In tetraethyl lead; and other markets, such as lead oxides, calking lead and solder.

In at least partial compensation for these losses, a vhole nev market vas found In tetraethyl lead; and other markets, such as lead oxides, calking lead and solder.

-aMmmeMlsafcfA^* i Ut' Look at lead la 1961 -3- m.

-aMmmeMlsafcfA^* i Ut' Look at lead la 1961 -3- m.

Urban concentrations of lead have declined somewhat since 1970. 3.

Another is tetraethyl lead, which being readily soluble in fats is particularly damaging to nerve centers and to the brain.

Rational Lead Co.