1344-08-7

Basic information

• Product Name: Sodium polysulfide
• Synonyms: Sodium sulfide (Na2(Sx));sodium polysulphide;sodium polysulphides;Sodium polysulfide
• CAS NO: 1344-08-7
• Molecular Formula: H2NaS+
• Molecular Weight: 57.07065
• EINECS: 215-686-9
• Product Categories: Inorganic Chemicals
• Mol File: 1344-08-7.mol
• Article Data: 0

Chemical Properties

• Melting Point: 400 °C
• Appearance: /
• Density: 1.203[at 20℃]
• Vapor Pressure: 0Pa at 20℃
• Water Solubility: 1g/L at 20℃
• CAS DataBase Reference: Sodium polysulfide(CAS DataBase Reference)
• NIST Chemistry Reference: Sodium polysulfide(1344-08-7)
• EPA Substance Registry System: Sodium polysulfide(1344-08-7)

Safety Data

• Hazard Codes: T,N
• Statements: 25-31-34-50
• Safety Statements: 26-36/37/39-45-61
• RIDADR: 3200
• HazardClass: 4.2
• PackingGroup: I
• Hazardous Substances Data: 1344-08-7(Hazardous Substances Data)

Usage

Chemical Properties

Different sources of media describe the Chemical Properties of 1344-08-7 differently. You can refer to the following data:
1. Yellow-brown, granular, free-flowing polymer.Combustible.
2. 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

Different sources of media describe the Uses of 1344-08-7 differently. You can refer to the following data:
1. 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.
2. 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

Nonflammable

InChI:InChI=1/Na.H2S/h;1H2/q+1;

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