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Sodium sulfide(CAS No. 1313-82-2)

Sodium sulfide Na2S (cas 1313-82-2) Molecular Structure

1313-82-2 Structure

Identification and Related Records

【Name】
Sodium sulfide
【CAS Registry number】
1313-82-2
【Synonyms】
Sodiumsulfide (Na2S)
Disodiummonosulfide
Disodium sulfide
Disodium sulfide (Na2S)
NSC 41874
Sodiummonosulfide
Sodium sulphide
【EINECS(EC#)】
215-211-5
【Molecular Formula】
Na2S (Products with the same molecular formula)
【Molecular Weight】
78.03
【Inchi】
InChI=1/2Na.S/q2*+1;-2
【InChIKey】
GRVFOGOEDUUMBP-UHFFFAOYSA-N
【Canonical SMILES】
[Na+].[Na+].[S-2]
【MOL File】
1313-82-2.mol

Chemical and Physical Properties

【Appearance】
crystals of varied colour, with a repulsive odour
【Density】
1.86
【Melting Point】
950℃
【Boiling Point】
174
【Water】
186 g/L (20℃)
【Solubilities】
Water solubility: 186 g/L (20 °C)
【Stability】
Spontaneously flammable. Incompatible with acids, metals, oxidizing agents. Contact with acid liberates toxic gas. Fine dust/air mixtures are explosive. Hygroscopic.
【Storage temp】
Refrigerator (+4°C)
【Computed Properties】
Molecular Weight:78.04454 [g/mol]
Molecular Formula:Na2S
H-Bond Donor:0
H-Bond Acceptor:1
Rotatable Bond Count:0
Exact Mass:77.95161
MonoIsotopic Mass:77.95161
Topological Polar Surface Area:1
Heavy Atom Count:3
Formal Charge:0
Complexity:0
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:3

Safety and Handling

【Hazard Codes】
C:Corrosive
【Risk Statements】
R31;R34;R50
【Safety Statements 】
S26;S45;S61
【HazardClass】
4.2
【Safety】

A poison by ingestion and intraperitoneal routes. Flammable when exposed to heat or flame. Unstable and can explode on rapid heating or percussion. Reacts violently with carbon, diazonium salts, n,n-dichloromethylamine, o-nitroaniline diazonium salt, water. When heated to decomposition it emits toxic fumes of SOx and Na2O. See also SULFIDES.
Hazard Codes:?CorrosiveC,DangerousN
Risk Statements: 31-34-50?
R31 :Contact with acids liberates toxic gas.?
R34:Causes burns.?
R50:Very toxic to aquatic organisms.
Safety Statements: 26-45-61?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)?
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.

【PackingGroup 】
II
【Sensitive】
Hygroscopic
【Transport】
UN 1385
【Specification】

?Sodium sulfide , its cas register number is 1313-82-2. It also can be called Sodium bichromate ; and Disodium monosulfide .

【Report】

Reported in EPA TSCA Inventory.

Use and Manufacturing

【Usage】

In prodn of heavy water for nuclear reactors.

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