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Studies on halogen derivatives of phenylazochromotropic acid: II. Spectrophotometric microdetermination of thorium

✍ Scribed by M.M. Khater; Y.M. Issa; S.S. Badawy

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
258 KB
Volume
22
Category
Article
ISSN
0026-265X

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## Abstract The preparation of pure low‐melting 4‐methylcyclohexanecarboxylic acid (m.p. 30.5‐31.5°) is described for the first time. By chemical means it is proved that low‐melting 4‐methylcyclohexanecarboxylic acid possesses the __cis__‐configuration and the high‐melting isomer the __trans__‐con