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Sodium Sulfide CAS#1313-82-2

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Chemical Name: Sodium Sulfide

CAS No.:1313-82-2

Molecular Formula: Na2S

Molecular weight: 78.04

Sample: Available

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Product Details

Products Description of Sodium Sulfide CAS#1313-82-2

Sodium sulfide is also known as alkali sulfide, stinking soda, and stinking alkali. The pure product is colorless or slightly purple prismatic crystals at room temperature. Industrial sodium sulfide is often pink, brownish red, or khaki blocks due to impurities. It has the smell of rotten eggs, is corrosive, and toxic. The density is 2.427. It decomposes at 920°C. It is soluble in cold water and easily soluble in hot water. When it is dissolved in water, it is almost completely hydrolyzed into sodium hydroxide and sodium hydrosulfide (the solubility is 15.4g at 10°C and 57.2g at 90°C). The aqueous solution is strongly alkaline and is corrosive to copper, wood, skin, etc. It is slightly soluble in ethanol and insoluble in ether. Sodium sulfide reacts with strong acid to release hydrogen sulfide. It is deliquescent in the air and easily oxidized to form sodium thioate.

Sodium Sulfide Chemical Properties

Melting point	950 °C(lit.)
density	1.86 g/mL at 25 °C(lit.)
storage temp.	Refrigerator (+4°C)
solubility	H₂O: 0.1 g/mL, clear, colorless
form	flakes
Specific Gravity	1.856
color	Yellow
Water Solubility	186 g/L (20 ºC)
Sensitive	Hygroscopic
Merck	14,8681
Dielectric constant	5.0（Ambient）
Stability:	Spontaneously flammable. Incompatible with acids, metals, oxidizing agents. Contact with acid liberates toxic gas. Fine dust/air mixtures are explosive. Hygroscopic.
InChIKey	CXPWOVUZRAFMDA-UHFFFAOYSA-N
CAS DataBase Reference	1313-82-2(CAS DataBase Reference)
NIST Chemistry Reference	Sodium sulfide(1313-82-2)
EPA Substance Registry System	Sodium sulfide (1313-82-2)

Safety Information

Hazard Codes	C,N,Xn
Risk Statements	31-34-50-22
Safety Statements	26-45-61-36/37/39
RIDADR	UN 1849 8/PG 2
WGK Germany	2
RTECS	WE1905000
F	3-8-9-23
TSCA	Yes
HazardClass	4.2
PackingGroup	II
HS Code	28301010
Hazardous Substances Data	1313-82-2(Hazardous Substances Data)

Product Application of Sodium Sulfide CAS#1313-82-2

Sodium sulfide is mainly used as a dehairing agent for raw hides, a pulp cooking agent, a raw material for sulphur dyes, a dye intermediate reducing agent, a fabric dyeing mordant, an ore flotation agent, and can also be used as a viscose fiber desulfurizer and a raw material for the production of sodium hydrosulfide and sodium polysulfide.

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