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Name: Sodium sulfide
CAS No. : 1313-82-2
Synonyms: Sodium sulfide hydrated 98+ % for analysis; Nickel monoxide
Molecular Formula: Na2S
Molecular Weight: 78.03
Melting point: 950: C
Water solubility: 186 g/L (20: C)
Specification: Fe: 30ppm max
Applications: It is primarily used in pulp and paper industry. It is used in water treatment as an oxygen scavenger agent, in the photographic industry to protect developer solutions from oxidation, in textile industry as a bleaching, as a desulfurizing and as a dechlorinating agent and in leather trade for the sulfitization of tanning extracts. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of rubber chemicals, sulfur dyes and other chemical compounds. It is use in other applications include ore flotation, oil recovery, food preservative, making dyes, and detergent.
1. Na2S: 60%min. purity
2. Iron(Fe) :1,500ppm
3. Water Insoluble: 0.4%max.
4. Usage: leather denude, Tannery
Sodium Sulphide(as Na2S) : 60% purity
Sodium Carbonate(as Na2CO3) : 5%(reddish, high Iron)
Sodium Sulphide(as Na2SO4) : 3%max.
Iron(Fe) : reddish: 300ppm, 1500ppm
Insoluble Substance: 0.4%(reddish, high Iron)
reddish granular (bean-like)
notice: when Iron content is higher, color is more reddish while
Iron lower, color more yellowish
Usage/application: to denude leather for tannery industry
package: 25KG,50KG/P. P. woven bag, 25MT/1FCL