Document 71Moz7k8XaJoEBo8ZoD1ZNQyR

ThaoAt Mldgley, and his eoworfcers (J, Ind, End* <Jb*# 14 894# 1982)# employed la the research staff of the Oeneral Motors Corporation at Dayton Ohio# have discovered that oeriain eoopounds when introduced into the gasoline set as "Antiknock" or "Opmpres aionisers" in that they prevent the knocking in engines running at low speed or at high compression* The most important of these compounds are d&thyselenid* and tetra ethyl lead At the present tine the Dye Works Plant of 8 1 du?o$t de Nemours and Company (the duPont Company controls the General Motors) la preparing to manufacture 80#000 gallons of lead tetra ethyl per day and it is reported that arrangements have been per fected with the Standard Oil Company of New Jersey to distribute the same In the preliminary work of manufacture of lead tetra ethyl several very serious oases of lead poisoning have resulted* It is proposed to employ lead tetra ethyl in gasoline in the proportion of ,6 oo per gallon This is equivalent to approxi mately 1 part of lead tetra ethyl in 740 parts of gasoline The lead is eliminated from the engine exhaust in the form of oxides of lead# principally litharge# as an exceedingly fix dust . The burning of 1 gallon of gasoline will throw lnt^ths atmosphere this dust to approximately the amount of 4 grams and since the average automobile engine will consume 2 gallons of gasoline per hour# 8 grams of litharge dust will result - / . r- v /' /- "r i'! i apprOTOd - B E. Dyer Acting Director i 'X ,.* -; /VrV f* ; i / V *