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RECORD NUMBER: 100 OF 107

Main Title Tracer Studies--Insecticides, Preparation of Carbon-14 Labeled DDT.
Author Pearce, George W. ; Jensen., Jens A. ;
CORP Author Communicable Disease Center, Savannah, Ga.
Year Published 1953
Stock Number PB-274 736
Additional Subjects Synthesis(Chemistry) ; DDT ; Pesticides ; Insecticides ; Isotopic labeling ; Carbon 14 ; Insecticides ; Reprints
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-274 736 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 3p
Abstract The synthesis of DDT labeled with carbon-14 in the tertiary position was carried out in the following steps: barium carbonate to ethyl acetate to ethyl alcohol to chloral to DDT. Starting with 50 millimoles of barium carbonate containing 20 millicuries of activity, 15 grams of crude DDT were obtained (42% yield based on ethyl alcohol). Two crystallizations from ethyl alcohol yielded 6.11 grams of p,p'-DDT (17% yield) having a melting point of 107-107.5 degrees C. The specific activity was approximately 0.5 millicurie per gram.
Supplementary Notes Pub. in Agricultural and Food Chemistry, v1 n12 p776, 2 Sep 53.
Availability Notes Included in the report, Journal Articles on Pesticide Chemistry, PB-274 732.
Title Annotations Reprint: Tracer Studies--Insecticides, Preparation of Carbon-14 Labeled DDT,
PUB Date Free Form 25 Aug 53
Category Codes 7C; 6F; 18B; 99D; 57P; 77B
NTIS Prices (Order as PB-274 732, MF A01)
Primary Description 500/01
Document Type NT
Cataloging Source NTIS/MT
Control Number 323728445
Origin NTIS
Type CAT