... .high capacity 4.timely delivery 5.honest service Sodium thiosulfate 1, Chemical name: Sodium thiosulfate 2, Structural formula:3, Molecular formula: Na2S2O2 ... @5H2O 4, Molecular weight: 248.17 5, Properties: Monoclinic crystal, Melting point ... testin accordance with the test----Granularity(g/g)12~16------- Sodium Thiosulphate