10117-38-1

Name POTASSIUM SULFITE
CAS 10117-38-1
EINECS(EC#) 233-321-1
Molecular Formula K2O3S
MDL Number MFCD00011387
Molecular Weight 158.26
MOL File 10117-38-1.mol
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Chemical Properties

Appearance White crystals or powder. Soluble in water; sparingly soluble in alcohol; decomposes on heating and slowly oxidizes in air.
density  2.353[at 20℃]
solubility  slightly soluble in ethanol
form  powder
color  colorless hexagonal, hexane crystals, crystalline
Odor odorless
Water Solubility  1060g/L at 25℃
Merck  13,7761
Cosmetics Ingredients Functions HAIR WAVING OR STRAIGHTENING
REDUCING
PRESERVATIVE
ANTIOXIDANT
InChI InChI=1S/K.H2O3S.H/c;1-4(2)3;/h;(H2,1,2,3);
InChIKey FOWJHTPNXPDZQJ-UHFFFAOYSA-N
SMILES S(O)(O)=O.[KH]
Uses
Photographic developer, medicine (cathartic), food and wine preservative.
CAS DataBase Reference 10117-38-1(CAS DataBase Reference)
EPA Substance Registry System Potassium sulfite (10117-38-1)

Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H319
Precautionary statements  P271-P261-P280
Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R31:Contact with acids liberates toxic gas.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  1
F  9
TSCA  TSCA listed
REACH Registrations Active
HS Code  2832200000
Storage Class 11 - Combustible Solids
Safety Profile
When heated to decomposition it emits toxic fumes of SOx and K2O. See also SULFUROUS ACID and SULFITES.
Hazardous Substances Data 10117-38-1(Hazardous Substances Data)

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