Document 0qvKymgNmoM2qwJvYkM4knknO

^Thompson \5ta-Meter Corporation A WHOLLY-OWNED SUBSIDIARY OF THOMPSON PRODUCTS, INC. PLEASE OIF?ECT REPLY TO C. H. VAN HARTESVELDT 6402 CEDAR AVENUE CLEVELAND. OHIO 2 3 555 EUCLID AVENUE Cleveland 17, Ohio February 23, 1950 Robert A. Xehoe, M. D. University of Cincinnati Kettering Laboratory of Applied Physiology Eden Avenue Cincinnati 19, Ohio Dear Dr. Kehoe: Attached is a copy of a memorandum on Vitane -with 6 ce of T.E.L. per gallon showing the commercial advantage for increasing lead content. Also reported is our laboratory data on lead evaporation and minimum tempera tures for solution of three lead concentrations. The Vitane containing 6 cc of T.E.L. per gallon to be used in the Cincinnati Gas and Electric Fleet under Mr. Fred Heinlein*s supervision i-rill be in drums for reasons of quantity and storage facilities. It has occurred to us that experience with the 6 cc fluid could be broadened to include bulk use by having the 6 cc fluid supplied to Yellow Cab in Cleve land and Akron Transit in addition to the proposed Cincinnati application. As you may know, the Canton Division of the Ashland Oil & Refining Co. leads Vitane with the same equipment used for their gasoline. Vitane is made up in batches up to six thousand gallons each. It will be convenient for them to make 6 cc Vitane for supplying the three fleets and also to make occasional belches of 3 cc Vitane for supplying our canner. As I mentioned in ity last discussion with you, we are prepared to support the effort necessary to determine the safety of Vitane containing 6 cc of T.E.L. and we would appreciate your estimate of the funds required for the coming year. We would like the estimate to cover all of the appli cations suggested above or whatever portion of them you feel justified initially. I will return from a Caribbean trip in March and at that time I will get in touch with you to make final arrangements for the new test program. With all best wishes. Yours very truly, CVH:ks Enel: C. H. Van Hartesveldt A# T* Colwell C* H* Van Hsrtesnreldt cejJ.'li. Cole B* L. Caswell 3* B. Anderson vnmB c o n t a in in g 6 ca ?.e .u 'brassy 22, 19 50 1* A test program vme recently completed'oh & Chevrolet engine mounted tax a dyruraomatei" test stand sad General Motors Research Sagine in the Thompson esperiaeatal Oldssaobil m on ike chassis dfsamemeter* la this test pragma, fitsno (3$$ methyl, 15J5 water) vas used to provide a constant increment of saiti-Jcnock ' ujility for several gasolines* The Vitsne used contained successively 0, 3, i<nd 6 ec of T*B*L# per gallon* Complete details will follow in an engineering report# k sa'saary of the results is attached# 2* Bva.-.'-ere.-tion Rate of T.IL> from 71tan. In eaaaereisl us the firet portion of materiel evaporation is the significant on when considering toxicity or inflaaaahililgr problems* Strong coesaerciel incen tives to prevent wasteful evaporation sr setisfeetory curb to excessive evaporation Vit-ifie Solution 1 (2*74 al/gal*) % Of Liquid Evaporated 5 10 20 30 5> Of Load Kvaocrated 7itcne Solution 2 5 10 20 30 (525 sal/gal#) yliana Solution 3 5 10 20 30 (10.15 si/gal#) 16 26 42 54 In the above date, for the first 10% evaporated it can he seen that the T.E*L* evaporation problem does not vary significantly v.-hea increaciag the lend content, from 2#7A to 5*25 co per gallon* Even at 20% evaporated the haKard is of the cam order for tfca two cases# The eva->oratioa of T,E.i* from a 10 co solution, however is significantly more rapid# KE" 0020687 ii** A* 7# Colwell Febro&jy 22, 1950 02 3. Solubility of T.B.L. la Vltane. Tiie temperature s.t which TF..L. will preelpitsta rcm Vifeme for various con centrations is fiiven below* 3 cc tetraethyl lead per gnlloa below -50 C. (-58 F) 6 co tetraethyl lead per gulloa -44 C* (-47 F.) 9 eo tetraethyl lesd per gslloa 360 c. (-320 y,). the sinus 47 ? tenyer&ture &pers't* he sufficiently low far &11 practical Considerations* 44 Rec<meadatloa|.. It is reooesaeaded th&fc the safety of Vitan# containing 6 co t.E.L. per gaJUoa be established by sciuai use of the satertel under the obecrvetiaa of Dr* Kehoe ::nd his Staff* Very truly yours. C* !!* Van n*rtevaldt 0020688 VITASg COOTAIHiafO 6 QO TBmSBSIL LEAD Sohlo X-70 (Reg. Grade; Approx. 1.5JC T.E.L*) Chevrolet Sohlo Supreme (Premium Grr.de; Approx. 2.6 ce T.E.L.) Chevrolet VIT/. NS INJECTION. 10.25 14.45 19.75 9.36 7.7 10.53 12.3 7.SS 6.29 8.93 11.6 7.14 SAVING 19.6 15.6 9.35 $ SAVING 6_0ver(|^gc 33.6 33.2 41.2 9.4 27.6 Vitsfuel (63 Octane; Approx. O.A' co T.E.L.) Chevrolet Sun (Reg. Grade; 0 co T.E.L.) Chevrolet Cfeaerel Motors Research (95 Octane Blended; Approx, 3.0 cc T.E.L.) 10-1 Oldasobile 9.72 13.31 19.2 9.7 14.6 13.4 -> 6.93 3.62 15.7 6.95 11.5 13.5 9.37 14.57 19.2 5.36 6.95 12.55 5.9 9.75 10.6 8.23 12.95 17.0 22.6 19.4 20.0 14.5 15.2 21.4 16.6 10.9 11.6 44.8 49.7 34.6 39.2 33.2 42.4 Sohlo Suoreae (Aourox. 3.6 ce T.E.L.) 10-1 Oldssobile 15.32 20.65 13.55 17.95 11,55 13.05 KA 00206S9.