T/CPCIF 0339-2024 Flame-treated by-product of organic fluorine chemical industry is hydrofluoric acid

Scope

Scope: This document specifies the requirements, test methods, inspection rules, marking and accompanying documents, packaging, transportation, and storage for hydrofluoric acid produced as a by-product of incineration in the organic fluorine chemical industry. This document applies to hydrofluoric acid generated from fluorine-containing gases, fluorine-containing residual liquids, and fluorine-containing residues produced during the production of organic fluorine chemical products, as well as hydrofluoric acid produced by incineration and water absorption. Main technical content: Project indicators: - Appearance: Colorless or slightly yellow transparent solution - Hydrogen fluoride (HF), w/w % ≥ 20.0 - Hydrochloric acid (HCl), w/w % ≤ 5.0 - Incineration residue, w/w % ≤ 0.10 - Hydrogen silicic acid (H2SiF6), w/w % ≤ 2.0 - Iron (Fe) / (mg/kg) ≤ 40 - Lead (Pb) / (mg/kg) ≤ 5 - Total chromium / (mg/kg) ≤ 10

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