Sodium polysulfide Property

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

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

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H314Causes severe skin burns and eye damage

H400Very toxic to aquatic life

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P363Wash contaminated clothing before reuse.

P391Collect spillage. Hazardous to the aquatic environment

P405Store locked up.

P501Dispose of contents/container to..…

Sodium polysulfide Chemical Properties,Usage,Production

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