Sodium polysulfide Chemical Properties

Melting point:

400 °C

Density 

1.203[at 20℃]

vapor pressure 

0Pa at 20℃

Water Solubility 

1g/L at 20℃

EPA Substance Registry System

Disodium polysulfide (1344-08-7)

Safety Information

Hazard Codes 

T,N

Risk Statements 

25-31-34-50

Safety Statements 

26-36/37/39-45-61

RIDADR 

3200

HazardClass 

4.2

PackingGroup 

I

Sodium polysulfide Usage And Synthesis

Chemical Properties

Yellow-brown, granular, free-flowing polymer.Combustible.

Chemical Properties

Sodium polysulphides have the general formula Na2Sx where x can be 2-6. All of these compounds have been prepared in the solid state, in which they are well defined.

Uses

The sodium polysulphide solutions used for the preparation of polysulphide elastomers generally have a rank of appro'ximately 2; for elastomers with a high sulphur content which have especially good solvent resistance, a rank of about 4 is used. In general, the rank of a polymer is close to that of the sodium polysulphide solution from which it is formed.

Uses

Manufacture of sulfur dyes and colors, insec- ticides, oil-resistant synthetic rubber (“Thiokol” [Toray]), petroleum additives, electroplating.

Preparation

Sodium polysulphide solutions are most commonly prepared by treating sulphur with aqueous sodium hydroxide:

Flammability and Explosibility

Non flammable

Sodium polysulfide(1344-08-7)Related Product Information

• Sodium p-toluenesulfonate
• Sodium L-aspartate
• Sodium sulfide
• Sodium hydrosulfide
• Sodium sulfate
• Sodium chloride
• Diclofenac sodium
• Sodium benzoate
• Sodium bicarbonate
• Sodium hydroxide
• Sodium chlorite
• Sodium acetate
• Sodium citrate
• Sodium 5-hydroxynaphthalene-1-sulphonate
• SODIUM 3,4-DIFLUOROBENZOATE
• sodium
• Sodium polysulfide