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Na2S2O3: 99.0% min
Insolubles in water: 0.01% max
Na2S: 0.001%max
Fe: 0.001%max
Particle size (grain/gram): 12-16
pH value (200g/L solution): 6.5-9.5
Na2S2O3: 99.0% min
Insolubles in water: 0.01% max
Na2S: 0.001%max
Fe: 0.001%max
Particle size (grain/gram): 12-16
pH value (200g/L solution): 6.5-9.5
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ADDRESS:RM.10E,Zhenghao Building, No.59,Guomao Road,Haikou,China. 570125