Product Description

Type: Sodium Sulfide Export Markets: Global Additional Info. Trademark: GREEN MOUNTAIN Packing: *5kg/Bag or According to Clients' Requirements Standard: National standard Origin: China HS Code: *******0 Production Capacity: ****0mt/Year Product Description Sodium thiosulfate 1, Chemical name: Sodium thiosulfate 2, Structural formula: 3, Molecular formula: *@********************ight: **8.*7 5, Properties: Monoclinic crystal, Melting point: ****5degree, Relative density: 1.**9(*7degree). 7, Packing: *5kg, *0kg plastic woven bag, or following your demand g. 8, Uses: Used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. And decolor agent. Sodium thiosulfate (Na2S2O3), also spelled sodium thiosulphate, is a colorlesscrystalline compound that is more familiar as the pentahydrate, Na2S2O3· 5H2O, anefflorescent, monoclinic crystalline substance also called sodium hyposulfite or "hypo. " The thiosulfate anion is tetrahedral in shape and is notionally derived by replacing one of the oxygen atoms by a sulfur atom in a sulfate anion. The S-S distance indicates a single bond, implying that the sulfur bears significant negative charge and the S-O interactions have more double bond character. The first protonation of thiosulfate occurs at sulfur. Item Photographic grade Industrial grade Anhydrous grade Appearance colorless transparent crystal colorless transparent crystal white powder Assay ≥ *9.*0% ≥ *8.5% ≥ *7.0% Water Insoluble matter ≤ 0.*1% ≤ 0.*3% ≤ 0.*3% Sulfide ≤ 0.**1% ≤ 0.**3% ≤ 0.**1% Fe ≤ 0.**1% ≤ 0.**3% ≤ 0.**5% PH 6.5~9.5 6.5~9.5 6.5~9.5 Water solution reaction in accordance with the test in accordance with the test ***- Granularity(g/g) *2~*6 **- ***-