Sodium Thiosulfate industrial grade and Photograph

Sodium Thiosulfateindustrial grade, Photographic grade and Anhydrous grade 99% min. Colorless, transparent crystals or powder. It is used in fixers,plating,leather,reductant,dechlorinating agent,sulfur dyeing agent. Specifications: ItemPhotographic gradeIndustrial gradeAnhydrous gradeAppearancecolorless transparent crystalcolorless transparent crystalwhite powderAssay≥99.00%≥98.5%≥97.0%Water Insoluble matter≤0.01%≤0.03%≤0.03%Sulfide≤0.001%≤0.003%≤0.001%Fe≤0.001%≤0.003%≤0.005%PH6.5 9.56.5 9.56.5 9.5Water solution reactionin accordance with the testin accordance with the test----Granularity(g/g)12 16------- ISO 9001-2000 certificated plant