Sodium sulfide nonahydrate
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."
Biomedical References
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
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: