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Personne àcontacter Mr. Alice
Wejin, Tianjin, Tianjin
White or light yellow powder. CAS No ********4 Molecular Formula Na2S2O5 Molecular Weight **0.*0 Technical grade: Purity: *7.0% min Sulfur Dioxide: *5.0% min Water Insolubles: 0.1% max PH Value: 4.**4.6 Iron (as Fe): *0ppm max Appearance: White or yellowish Crystal Powder Food grade: Purity: *8.0% min Sulfur Dioxide: *6.0% min Water Insolubles: 0.*5% max PH Value: 4.**4.6 Iron (as Fe): *0ppm max Arsenic (as As): 2ppm max Heavy Metals (as Pb): *0ppm max Appearance: White Crystal Powder Used in water treatment, photographic chemical, leather, rubber, food, and brewing industry.
