items standard
description white or almost white crystalline powder
identification a.infrared absorption conform
b.it responds to the tests for chloride
melting point 205.0--209.0 0 c
ph 2.4-3.0
loss on drying ≤0.2%
residue on ignition ≤0.10%
sulphated ash ≤0.10%
heavy metals ≤10ppm
assay 99.0%-101.0%
chloride content 16.9-17.6%
related substances ≤ 0.25%
organic volatile impurities meet the requirements