Sodium tetrasulfide
Basic information
- CAS
12034-39-8- Standard SMILES
[Na+].[Na+].[S-]SS[S-]- InChIKey
ZLCCLBKPLLUIJC-UHFFFAOYSA-L- Molecular formula
- Na2S4
- Average molar mass
- 174.2 g/mol
- Monoisotopic mass
- 173.86782326
Overview
a mercury capturing agent
Names & identifiers
- Preferred name
- Sodium tetrasulfide
- English name
- Sodium tetrasulfide
- Molecular formula
- Na2S4
- Molecular weight
- 174.24
Names & synonyms
Sodium tetrasulfide12034-39-8Sodium sulfide (Na2(S4))DTXSID106518611J35Y83VXSTS cpdRefChem:184126DTXCID5033595234-805-5Disodium tetrasulphideNa2S4UNII-11J35Y83VX
Show more names
disodiumtetrasulphidesodium sulfide, tech.sodiumsulfide(na2(s4))SODIUM TETRASULFIDE, 90+%disodium tetrasulphide Na2S4SODIUM TETRASULFIDE(12034-39-8)Sodium tetrasulfide, technical, 90%Sodium sulfide, tech., 90+%, H2O 5% maxSodium tetrasulfide 90% maximum 5% water
EINECS 234-805-5disodium tetrasulfane-1,4-diide
Database identifiers
- CAS
12034-39-8- PubChem CID
- 82835
- DTXSID
DTXSID1065186- EC Number
- 234-805-5
Properties
Computed structural properties
- Topological polar surface area
- 52.6 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 1
- Heavy atoms
- 6
- Formal charge
- 0
- Complexity
- 7.5
Experimental & physicochemical properties
Chemical ClassesOther Classes -> Sulfur Compounds
Physical Description
Liquid; Large Crystals
Solid; [IUCLID] Light brown powder with an odor like rotten eggs; Hygroscopic; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 275 °C · 275°C
- Boiling point
- 115 ℃ · 115℃ [KIR83]
- Density
- 1.335 · 1.335
- form
- Powder
- color
- Pale brown
- Water Solubility
- Soluble in water and alcohol. Insoluble in ether.
- Sensitive
- Moisture Sensitive & Hygroscopic
- InChI
- InChI=1S/2Na.H2S4/c;;1-3-4-2/h;;1-2H/q2*+1;/p-2
- InChIKey
- ZLCCLBKPLLUIJC-UHFFFAOYSA-L
- SMILES
- S(S[Na])SS[Na]
- FDA UNII
- 11 J35Y83VX · 11J35Y83VX
- EPA Substance Registry System
- Sodium sulfide (Na2(S4)) (12034-39-8)
- Symbol(GHS)
- 2 · GHS02,GHS05,GHS06,GHS09
- Hazard statements
- 228 · H228-H252-H302-H311-H314-H318-H400
- Precautionary statements
- 273 · P273-P280-P305+P351+P338-P309-P310-P420
- Hazard Codes
- F,C
- Risk Statements
- 11 · 11-34
- Safety Statements
- 16 · 16-26-36/37/39-45
- RIDADR
- 1385 · UN1385
- TSCA
- TSCA listed
- HazardClass
- 4.2 · 4.2
- PackingGroup
- II
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H228 (79.6%): Flammable solid [Danger Flammable solids]
P210, P240, P241, P260, P262, P264, P270, P273, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P361+P364, P363, P370+P378, P391, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 49 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Sodium sulfide (Na2S4)
Sodium sulfide (Na2(S4)) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sodium sulfide (Na2(S4)) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Sodium sulfide (Na2(S4)): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards Summary
Oral LD50 (rat) = 128-130 mg/kg; Dermal LD50 (rabbit) = 590-1,650 mg/kg; Corrosive to rabbit skin; [IUCLID] Large quantities may spontaneously combust; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Harmful by ingestion; Toxic by skin absorption; [Alfa Aesar MSDS]
Hazard Classes and CategoriesFlam. Sol. 2 (79.6%)
Toxicology
Adverse EffectsDermatotoxin - Skin burns.
Safety data
- tsca
- TSCA listed
- ridadr
- UN1385
- risk_code
- 11-34
- Symbol(GHS)
- GHS02,GHS05,GHS06,GHS09
- hazard_code
- F,C
- safety_code
- 16-26-36/37/39-45
- hazard_class
- 4.2
- packing_group
- II
- Hazard statements
- H228-H252-H302-H311-H314-H318-H400
- Precautionary statements
- P273-P280-P305+P351+P338-P309-P310-P420
Chemistry & industry
Uses & manufacturing
U.S. Production2023: 2,941,027 lb
Industry UsesCleaning agent
General Manufacturing Information
All Other Basic Inorganic Chemical Manufacturing
Sodium sulfide (Na2(S4)): ACTIVE
Applications
UsesFor 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.
UsesReducing organic nitro compounds, manufac- ture of sulfur dyes, insecticides and fungicides, ore flotation, soaking hides and skins, preparation of metal sulfide finishes.
Upstream & downstream products
Downstream products
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Related reactions
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Compound notes
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