T/SDHCIA 047-2024 Cyclopropanecarboxylic acid by-product dimethylamine hydrochloride solution

Scope

Main technical content: This document specifies the requirements, test methods, inspection rules, and marking, packaging, transportation, and storage requirements for the aqueous solution of dimethylamine hydrochloride, a by-product of cyclopropane carboxylic acid (hereinafter referred to as the aqueous solution of dimethylamine hydrochloride). This document applies to the production of cyclopropane carboxylic acid (CAS 86393-33-1) using 2,4-dichloro-5-fluorobenzoic chloride, N,N-dimethylaminopropionic acid ethyl ester, and other main raw materials. During the production process, the lower aqueous phase generated in the substitution reaction step is extracted and allowed to settle for stratification to produce the aqueous solution of dimethylamine hydrochloride. The aqueous solution of dimethylamine hydrochloride is mainly used as a raw material for the production of N,N-dimethylaminopropionic acid ethyl ester, and is prohibited from being used in food, feed, aquaculture, and other fields.

Development Information

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