T/CPCIF 0080-2020 Polycarbonate by-product: Sodium chloride

Scope

Scope: This document specifies the product classification, requirements, test methods, inspection rules, packaging, labeling, transportation, and storage of sodium chloride by-products from polycarbonate production. This document applies to refined sodium chloride brine obtained from polycarbonate by-products and solid sodium chloride obtained after brine evaporation and crystallization. This sodium chloride product is primarily used in the chlor-alkali industry. It can be mixed with seawater, brine, or rock salt for salt production, and it can also be used in other industrial fields as needed. Warning: It is strictly prohibited to use it directly or indirectly in food processing, animal husbandry, medicine, or other fields. Main technical contents: Project indicators Solid salt Brine Sodium chloride, w/% ≥97.0 94.0 15.0 Water content, w/% ≤1.5 3.5 Water-insoluble matter, w/% ≤0.05 0.20 0.02 Total calcium and magnesium ions, w/% ≤0.1 0.3 0.02 Sodium carbonate, w/% ≤0.5 1.0 0.16 Sulfate, w/% ≤0.4 0.7 0.04 Ammonium ion (NH4+), mg/kg ≤561 Total organic carbon (TOC), mg/kg ≤70 100 15 Bisphenol A), mg/kg ≤10 155 Phenol), mg/kg ≤5 102 Note: 1) Bisphenol A is a detection item for sodium chloride by-products produced by the interfacial polycondensation of phosgene. 2) Phenol is a detection item for sodium chloride by-products produced by the melt ester exchange method.

Development Information

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