Min. Order Reference FOB Price
20 Tons US$370.00-400.00 / Ton
Product Description
Product Description Properties: White or slightly yellow crystalline powder. Specification: Appearance White Powder Purity as Na2S2O5 96.5% Minimum SO2 65% Minimum Water Insoluble Material 0.05% Maximum Iron(Fe) 0.003% Maximum PH 4.0-4.8 Heavy Metals as pb 0.0005% Maximum ...