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Sodium Sulfide

　

　

　

　

　

　

　

　

Molecular formula： Na2S
　

　


Use: dehydrating agent, manufactured of rubber, dyestuff tincture, rayon denitration agent, paper pulp, metal ore flotation, refined metal, emboss, printing and dyeing reagent.

　

　

　

　

　

　

　

　

Industrial Sodium Sulfide technical stantard
Implement Standard：GB 10500-2009                                                                       unit:%
project index
Class I Class II Class III
Excellent product First grade Qualified product First grade Qualified product
Sodium Sulfide（Na2S）content                  ≥ 60.00 60.00 60.00 60.00 60.00 65.00
sodium sulphite（Na2SO3）content              ≤ 2.00 - - - - -
sodium hyposulfite（Na2S2O3）content          ≤ 2.00 - - - - -
ron （Fe)含量        content                 ≤ 0.030 0.120 0.200 0.003 0.005 0.080
sodium carbonate（Na2CO3） content            ≤ 3.50 5.00 - 2.00 3.00 4.00
water insolubilitycontent                    ≤ 0.20 0.40 0.80 0.05 0.10 0.30