Identification and Related Records
- 【Name】
- Sodium sulfide
- 【Registry number】
- 1313-82-2 (CAS DataBase Reference)
- 【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]
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:?
C,
N
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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