Document b5Ryzqj8R5Q5BZOYE18gEbveZ

THE ASSOCIATED ETHYL COMPANY LIMITED NORTHWICH CHESHIRE ^ Telephone; NORTHWI CH 2237. jf& ad Office: ARTI LLERY H O U SE, ARTI LLERY ROW , LO N D O N , S.W . I. ABBEY 3 S7 4 . O U R REF. YO U R REF. CJelegnams &Calles: e t h y l p o r t , n o r t h w i c h . o a t e 2 0 th A n r i l , 19 4 0. directors: . N. A . G A S S . J. 8 . AUG. K ES S LER, ( NETHERLAND S) J.W - B O YLE. r .G .C. MORRIS. R.H .PO RTERS . R.W . S E L L E R S . D. A . S H E PA R D . ( u . S. A.) A. J. SI NGLETON. G. S PR Y. T. R. A. SEVAN, (Managing} D r. I?.A. Kehoe, .- K etterin g Laboratory of Applied rhysiology, College of Hdicine, U niversity of C incinnati, C incinnati, 13, CHIC, U.3.A. ` Dear Dr. Kehoe, '" e r e I t o r e c e i v e t h i s l e t t e r my i m p r e s s i o n would be t h a t t h e writer' th o u g h t t h a t I had n o t much to d o . I must humbly a p o l o g is e , f o r I r e a l i s e bo very busy you always a r e , (1) H irs t, a query which is w orrying i'ryke. According to our re g u la tio n s i t is p e rfe c tly safe to e n ter a tank a f te r i t has been rendered sludge; fre e . An o i l company h as s t a t e d t h a t i n some l a r g e t a n k s w i t h i n d i f f e r e n t v e n t i l a t i o n , th e re is a c o n sid e ra b le amount o f T.E.L. vapour in th e a i r , and th ey do not consider i t a safe procedure to enter a tank w ithout p ro te c tiv e equipment im m e d is to ly i t i s s lu d g e f r e e . We have n o t th e f a c i l i t i e s h e r e f o r t e s t i n g the le a d in a i r in ta n k s , and i t w i l l be some y e a rs b e fo re th e f i e l d k i t -will b e i n g e n e r a l u s e , a n d , ev e n t h e n , i t w i l l be o n l y a t r e f i n e r i e s w here i t ' i l l be properly used. There remains th e la rg e number o f lo c a tio n s whore a g en eral ru le is necessary fo r the time th a t must elapse between the p o in t the tank is s lu d g e f r e e and when i t may be e n t e r e d w i t h s a f e t y . The v /o r s t pos s i b l e c o n d i t i o n s a r e v i s u a l i s e d . Could we p l e a s e have your comments on t h i 3 u r g e n tl y ? ( 2 ) You w ere c o m p le ti n g a r e p o r t on t h e c l e a n i n g o f s m a l l t a n k s u n d e r 1,0 0 0 b a r r e l s i n c a p a c i t y . You g av e some o f t h e f i g u r e s and a g e n e r a l o p i n i o n on t h e s e . Gould we p le a s e have a copy o f th e f i n a l r e p o r t? Ip) E th y len e dibrom ide has been suggested as a s o i l s t e r i l i s e r . I t i s a p p a r e n t l y p o s s i b l e t h a t i t s u s e f o r t h i s p u r p o s e may become a co m m ercial p r o p o s iti o n . I have your s t u d i e s and th o se o f Thomas and Y ant, b u t n o th in g on human c a s e s o f i n t o x i c a t i o n . I am o f t h e im p r e s s i o n t h a t t h e r e h a s been a t l e a s t one case o f p o is o n in g . I would be most g r a t e f u l f o r any in fo rm a tio n on t h i s c a s e , o r o t h e r s . The sym ptom atology i n man i s n o t known to me. (4) C roton aldehyde i s to be used as a d e n a tu ra n t fo r a lc o h o l a t th e Dibromide p la n t. I can g e t n o th in g d e f i n i t e on th e to x ic o lo g ic a l p r o p e rtie s of c ro to n aldehyde on th i s s id e . Could you piloase help? This i s n o t u rg e n t. ID) I have been a sk ed by a d o c t o r i n S w i t z e r l a n d t o a p p r o a c h you r e g a r d i n g m ethyl a c e t a t e . V/e have n o t h i n g on i t . He was p a r t i c u l a r l y a n x io u s t o know i f i t -re d u c e s n e u r o lo g ic a l symptoms in man. Henderson and Haggard in t h e i r ( Gontd.) .Dx.....-R..A.....Xeh.QS,..XhiQ.f ...IL^a.vA. n.vi'n...Zu.i.h .Aprii-.,.-1.Q4S- t e x tb o o k "N oxious G ases'* i n d i c a t e t h a t i t p r o b a b l y h as n o t more t h a n an a n a e s t h e t i c a c t i o n . The in s ta n c e c o n s t i t u t i n g h i s problem , of which I have no d e t a i l s , i s one in -which an in d i v id u a l developed s ig n s o f m eningeal i r r i t a t i o n followed by a temporary p arap leg ia. .. (6) V.'e a r e g o i n g th r o u g h o u r m eagre s u p p ly o f l i t e r a t u r e a t a n am azing r a t e . Could we p l e a s e have a f u r t h e r s u p p ly o f "Lead S t u d i e s " i n F r e n c h , and a few in Spanish and I t a l i a n ? " e have no sp are co p ies o f "O ccupational Lead E x p o su re and Lead P o is o n in g " . T h is i s a m ost p o p u l a r p u b l i c a t i o n . '<<!e would a l s o be g r a t e f u l f o r a few c o p ie s o f th e "Lead P o is o n in g Symposium" o f 19^v> and ns many c o p i e s ah you can s p a r e o f " E x p o su re t o Lead" o f F e b r u a r y 19^7 I was i n S w itz e rla n d l a s t week. The p o l i t i c a l s i t u a t i o n i s a g a i n s t th e use o f leaded g a s o li n e . The im p re ssio n is t h a t i t w i l l rem ain. The I . P . 3 . A . r e f i n e r y a t F o tk r e u z , n e a r Z u r ic h , i s commencing blending w ith b a r r e l equipment, w ith one e d u c to r. This i s a new r e f i n e r y m a rk e tin g i t s products in S w itzerlan d . I had a conference w ith in tra n s ig e n t Dr. S e tt lin g and two d o c t o r s a s s o c i a t e d w ith t h e m e d i c o - l e g a l and c o m p e n s a tio n a s p e c t s , nam ely, D r . A. S t t t k l y and Dr. D. H o e g g e r. The l a t t e r w ere r e a s o n a b l e men. D r. V.ax L ed e r o f Z u r i c h h as b een a p p o i n t e d m e d ic a l C o n s u l t a n t to co v er th e K o tk reu z i n s t a l l a t i o n . rie s p e c i a l i s e s i n d erm a to lo g y , v e n e r e o lo g y and in d u s t r i a l d is e a s e s . The E t h y l Committee in S w itz e rla n d w i l l nom inate a p h y sic ia n /to x ic o lo g ist to in v e stig a te fo r i t should any cases of poisoning occur in S w itz e rla n d . They remain very in s u la r and c o n s e rv a tiv e in o u tlo o k , and w ill alm ost c e rta in ly augment the re g u la tio n s. I had an i n t e r v i e w w i t h H r . Bevan l a s t week and he t o l d me t h a t th e new e x te n s io n had been h e ld up by th e bad w e a th e r, and t h a t i t would p ro b a b ly be co m p le te d i n t h e e a r l y summer. I am s u r e you w i l l be p l e a s e d t o s e e i t f i n i s h e d . I h e a r d t h a t you may b e com ing o v e r i n S e p te m b e r. We s h a l l be d elig h ted indeed to see you again. Things Pr g ra d u a lly improving here d esp ite improved o u tp u t. La3t month was th e b e s t ev er from the m edical poin-t of view, and improvement w ill continue. p l e a s e g i v e my r e s p e c t s t o j>lrs. K ehoe, With k in d est personal regards, Yours very sin c e re ly , T3. D a v is o n . KJ? 0010009