Potassium hydrosulfite
Agent Name
Potassium hydrosulfite
Alternative Name
Potassium dithionite
CAS Number
14293-73-3
Formula
H2-O4-S2.2K
Major Category
Metals
Synonyms
Potassium dithionite or potassium hydrosulfite; [ChemIDplus] Potassium hydrosulphite; [ERG] Dipotassium dithionite; [CAMEO] Dithionous acid, dipotassium salt; [HSDB] UN1929
Category
Hydrosulfites
Description
Light yellow solid; [CAMEO]
Sources/Uses
Used to make dyes and other chemicals; [CAMEO]
Comments
Highly flammable; A strong reducing agent that reacts with water and air; [CAMEO] See "Sodium hydrosulfite."
Biomedical References
Exposure Assessment
TIH
Yes
Dangerous When Wet
Yes
Explanatory Notes
Not TIH in land-based spills, but TiH substance released when spilled in water; [ERG 2016]
Adverse Effects
Toxic Pneumonitis
Yes
Other Poison
Chemical Asphyxiant
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: