Specialty Additives Available to Source

Sodium hydrosulfide

NaHS
CAS 16721-80-5 · MF HNaS · MW 56.07 g/mol · UN 2318 (SODIUM HYDROSULFIDE, SOLID, WITH LESS THAN 25% WATER OF CRYSTALLIZATION)

Sulfidizing agent

SDS / TDS Download
CAS Number
16721-80-5
Molecular Formula
HNaS
Molecular Weight
56.07 g/mol
Material Family
Specialty Additives
Functional Roles
Industries Served
Physical Properties
melting_point
63 u00b0F (USCG, 1999)
boiling_point
212 u00b0F at 760 mmHg (approx.) (USCG, 1999)
density
1.3 at 59 u00b0F (USCG, 1999) - Denser than water; will sink
solubility
SOL IN WATER, ALCOHOL, ETHER
vapor_pressure
49.12 mmHg (USCG, 1999)
GHS / SDS Safety Danger
Acute Toxic Environmental Hazard Flammable Irritant Health Hazard Corrosive
  • H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
  • H226 (56%): Flammable liquid and vapor [Warning Flammable liquids]
  • H301 (84.1%): Toxic if swallowed [Danger Acute toxicity, oral]
  • H400 (84.8%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
  • H251 (14.1%): Self-heating; may catch fire [Danger Self-heating substances and mixtures]
  • H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
  • H318 (81.9%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H290 (80.6%): May be corrosive to metals [Warning Corrosive to Metals]
  • H251: Self-heating; may catch fire [Danger Self-heating substances and mixtures]
  • H301: Toxic if swallowed [Danger Acute toxicity, oral]
  • H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
  • H314 (97%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
  • H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
Chemical Identity
CAS Number16721-80-5
IUPAC Namesodium sulfanide
InChI KeyHYHCSLBZRBJJCH-UHFFFAOYSA-M
PubChem CID 28015
Synonyms & Trade Names
SODIUM HYDROSULFIDE Sodium bisulfide Sodium sulfhydrate Sodium hydrogen sulfide Sodium mercaptan Sodium sulfide (Na(SH)) Sodium mercaptide sodium sulfanide Hydrogen sodium sulfide Sodium sulfide (Na(HS)) Sodium hydrosulfide (Na(HS)) Sodium hydrogen sulfide (NaHS) Hidrosulfuro sodics NA2922
Full Description

Sulfidizing agent