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Description:Product Name: Sodium SulphidePlace of Origin: ChinaFeatures: 1) Na2S: 60% min. 2) Water insoluble: 0.4% max. 3) Fe: 0.15% max. 4) Na2CO3: 5% max. 5) Standards: GB10500-2000 Packing: 25kg plastic woven bags lined with two layer polythene bags inside with plastic coating bags