SODIUM TETRASULFIDE Property

Melting point:

275°C

Boiling point:

115℃ [KIR83]

Density 

1.335

form 

Powder

color 

Pale brown

Water Solubility 

Soluble in water and alcohol. Insoluble in ether.

Sensitive 

Moisture Sensitive & Hygroscopic

EPA Substance Registry System

Sodium sulfide (Na2(S4)) (12034-39-8)

Safety

Hazard Codes 

F,C

Risk Statements 

11-34

Safety Statements 

16-26-36/37/39-45

RIDADR 

UN1385

TSCA 

Yes

HazardClass 

4.2

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Hazard statements

H228Flammable solid

H252Self-heating in large quantities; may catch fire

H302Harmful if swallowed

H311Toxic in contact with skin

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

H400Very toxic to aquatic life

Precautionary statements

P273Avoid release to the environment.

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

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

P309IF exposed or if you feel unwell:

P310Immediately call a POISON CENTER or doctor/physician.

P420Store away from other materials.

SODIUM TETRASULFIDE Chemical Properties,Usage,Production

Chemical Properties

Yellow, hygroscopic crystals or clear, dark-red liquid.

Uses

For reducing organic nitro compounds, in the manufacture of sulfur dyes, in ore flotation, and in the preparation of metal sulfide finishes.It is involved in the production of cross-linking agents such as bis(triethoxysilylpropyl)tetrasulfide. It acts as a precursor for certain specialty polymers and intermediates in prototypes of the sodium-sulfur battery.

Uses

Reducing organic nitro compounds, manufac- ture of sulfur dyes, insecticides and fungicides, ore flotation, soaking hides and skins, preparation of metal sulfide finishes.

Hazard

Fire risk when exposed to flame. Irritant to skin and tissue.