产品通用描述:主要用于照相和电影胶片显影液,还用作碗碟食具的洗涤剂。 Feature: Total alkalinity (as Na2CO3 in dry base): ≥99.2% Chloride content(as NaCl): ≤0.70% Iron content(as Fe in dry base): ≤0.003% Sulphate content (as SO4 in dry base): ≤0.03% Water insoluble matter: ≤0.03% Loss on ignition: ≤0.5% (a: The content when packed