T/CSZX 003-2023 By-product sulfuric acid

Scope

Scope: This document specifies the classification, requirements, sampling, test methods, inspection rules, marking, packaging, transportation, storage, and safety of by-product sulfuric acid. This document applies to by-product sulfuric acid generated during the production of trifluoroacetic acid (TFA) from 1,1,1-trichlorotrifluoroethane (CFC-113a). Main technical contents: This document specifies the classification, requirements, sampling, test methods, inspection rules, marking, packaging, transportation, storage, and safety of by-product sulfuric acid. This document applies to by-product sulfuric acid generated during the production of trifluoroacetic acid (TFA) from 1,1,1-trichlorotrifluoroethane (CFC-113a). The main technical contents are as follows: 1. Appearance: Colorless, light yellow or yellow liquid, with no visible mechanical impurities. 2. Total acidity (calculated as H2SO4): Type I: 55.0±5.0%, Type II: 45.0±5.0% (when the total acidity is 50.0%, it is calculated as Type I). 3. Chlorides (calculated as Cl): ≤15.0%. 4. Other impurities: According to the requirements of the user (the manufacturer shall provide the impurity information and test methods upon the user's request).

Development Information

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