Sodium Sulphide

Description

Sodium sulfide nonahydrate · CAS 1313-84-4 · Na2.S.9H2O. UNII C02T02993U. Density: 1.427 @ 16°C.

Identification

CAS Registry Number	1313-84-4
PubChem CID	73972
Molecular formula	Na2.S.9H2O
IUPAC name	disodium;sulfide;nonahydrate
UNII (FDA)	C02T02993U

Computed Descriptors

Molecular Weight	240.19
Hydrogen Bond Donor Count	9
Hydrogen Bond Acceptor Count	10
Rotatable Bond Count	0
Exact Mass	240.04669188
Monoisotopic Mass	240.04669188
Topological Polar Surface Area	10
Heavy Atom Count	12
Formal Charge	0
Complexity	0

Physical & Chemical Properties

Density	1.427 @ 16°C

Physical description & handling notes

• Yellow deliquescent solid with an odor of hydrogen sulfide; Discolored by light and air becoming brownish-black; [Merck Index] Colorless crystals with lumps; [Sigma-Aldrich MSDS]

Regulatory Status

GHS notification summary	1.2% (3 / 248)

GHS Hazard Classification

GHS notification summary	1.2% (3 / 248)
Reported hazard statements	H301, H311 (41.9%), H302 (27%), H314 (98.8%), H318 (43.5%), H400 (94%)

Documented Uses

• Used for dehairing hides, pulling wool, desulfurizing viscose rayon, metal engraving, cotton printing, and paper-pulping; Also used in ore flotation and to manufacture rubber and sulfur dyes; [Merck Index]
• Pulp and Paper Processing [Category: Industry]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Leather Tanning and Processing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Metal Extraction and Refining [Category: Industry]

Synonyms

Disodium sulfide nonahydrate; Sodium sulphide nonahydrate; Sodium Monosulfide Nonahydrate; sodium monosulphide nonahydrate; CHEBI:76209; C02T02993U; RefChem:887902; DTXCID10809566; 639-249-0; 1313-84-4; DTXSID40858820; Sodium sulfide (Na2S), nonahydrate; Sodium sulfide nonahydrate; Sodium sulfide, nonahydrate; Sulfure de sodium; disodium;sulfide;nonahydrate

Frequently Asked Questions

What are the CAS number and molecular formula of Sodium sulfide nonahydrate?

CAS 1313-84-4; molecular formula Na2.S.9H2O; molecular weight — g/mol.

What other names is Sodium sulfide nonahydrate known by?

Disodium sulfide nonahydrate, Sodium sulphide nonahydrate, Sodium Monosulfide Nonahydrate, sodium monosulphide nonahydrate, CHEBI:76209, C02T02993U.

Is Sodium sulfide nonahydrate classified as hazardous?

1.2% of GHS notifications report no hazard classification (3 of 248).

What are the key physical properties of Sodium sulfide nonahydrate?

Density: 1.427 @ 16°C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.