产品描述

Appearance     White, colourless, crystalline powder
Identification     Pass test
Assay (C10H16N2O8)     ≥ 99.0%
Chloride (Cl)     ≤ 0.01%
Sulphate (SO4)     ≤ 0.05%
pH (saturated solution)     2.5- 2.9
Ferrum (Fe)     ≤ 10 mg/kg
Lead (Pb)     ≤ 5 mg/kg
Arsenic (As)     ≤ 3 mg/kg
Mercury (Hg)     ≤ 1 mg/kg
Heavy metals (as Pb)     ≤ 10 mg/kg