Agent Name

Sodium sulfide nonahydrate

CAS Number

1313-84-4

Formula

Na2-S.9H2-O

Major Category

Other Classes

Synonyms

Disodium sulfide nonahydrate; Sodium sulfide; Sodium sulphide nonahydrate; Sulfure de sodium [French]; Sodium sulfide, nonahydrate; [ChemIDplus] UN1849

Category

Sulfur Compounds

Description

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]

Sources/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]

Comments

Intraperitoneal LD50 (mouse) = 53 mg/kg; [RTECS] Produces hydrogen sulfide on exposure to air; [Merck Index] Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Harmful by ingestion; Toxic by skin absorption; Targets the nerves and cardiovascular system; [Sigma-Aldrich MSDS] See "Hydrogen sulfide."

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Sodium sulfide, hydrated, with not less than 30% water."

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: