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Home > Products > Alkalies > Sodium Sulfide

Sodium Sulphide

Other Names: Disodium sulfide, Sodium Suifide

Molecular Formula: Na2S 

UN No.: 1849

HS No.:2830101000

CAS No.:   1313-82-2

EINECS No.:   215-211-5

Hazard Class:  8

Purity:  60% 

Appearance: White to Yellow Flake


Physical and Chemical Properties:

Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S·9H2O. Both are colorless water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na2S and its hydrates emit hydrogen sulfide, which smells like rotten eggs.

Grade Standard:  

FeNa2SWater insolubleNa2CO3Na2SO3Na2S2O3Color
15ppm Max60%min.0.05%max1.80%max1.80%Max2.00%max Yellow
20ppm Max60%min.0.10%max1.80%max1.80%Max2.00%maxYellow 
30ppm Max60%min.0.18%max1.80%max1.80%max2.00%maxYellow 
50ppm Max60%min0.18%max1.80%max2.00%max2.00%maxYellow 
80ppm Max60%min0.20%max2.00%max2.00%max2.00%maxYellow 
150ppm Max60%min0.30%max3.00%max2.00%max2.00%max Yellow
1500ppm Max60%min0.40%max5.00%max2.00%max2.00%maxRed

Note: The above specification is satisfy with GB105002009, also accord with European and American Standards.We can accept the Third part test.Such as BV,SGS etc.


25KG bags, 22-25MT/20GP. 1000KG bag, 20MT/20GP. 


Sodium sulfide is primarily used in the kraft process in the pulp and paper industry.

It is used in water treatment as an oxygen scavenger agent and also as a metals precipitant;

in chemical photography for toning black and white photographs;

in the textile industry as a bleaching agent, for desulfurising and as a dechlorinating agent; and in the leather trade for the sulfitisation 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 used in other applications including ore flotation, oil recovery, making dyes, and detergent. It is also used during leather processing, as an unhairing agent in the liming operation.


Store in a cool, dry place. Keep container closed when not in use. Store in a tightly closed container. Keep from contact with oxidizing materials. Keep away from strong acids. Store protected from moisture.


Our chemicals can be tested by any impartial third party, such as SGS,BV,ISO,CE, etc.

About Us

11 years experience supplier and the annual production is 200,000MT/Year.


---High Timely Response Rate

---Technical Support

---Safety of Package and Transportation

---Long-term and Stable Supply Available(Container,ISO,Tank,Bulk)

---High Purity