Product Description
White or light-yellow crystalline powder, smell of SO2.No other smell when dried. Specific gravity is 1.4. It's soluble in glycerin, it's soluble slightly in alcohol. Mainly used as bleaching agent, bulking agent in food processing. And used for producing medicine iodoform, vanillin photographic fixative, rubber solidifying agent, etc.
Project Target Test Result CONTENT(Na2S2O5):≥ 97.00% 98.11% SO2: ≥ 65.00% 65.45% IRON(Fe): ≤ 0.002% 0.0017% AS: ≤ 0.0001% 0.0001% WATER INSOLUBLE MATTER: ≤ 0.02% 0.01% PB: ≤ 0.0005% 0.00048% PH 4-4.8 4.52