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Potassium metabisulfite

CAT: 0862-GX0303-250gSize: 250 gDry Ice: NoHazardous: No
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CAT#:0862-GX0303-250gSize:250 g
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CAS Number
16731-55-8
EC Number
240-795-3
MDL Number
MFCD00167605
HS Code
28322000000
Purity
95.00%
Molecular Formula
K2S2O5
Molecular Weight
222.32
Storage Conditions
+20°C
Hazardous Class
Not hazardous

Chemical Information

Potassium Metabisulfite

Potassium metabisulfite appears as a white granular or powdery solid with a sharp odor of sulfur dioxide. Decomposes at 150 to 190 °C. Density 2.3 g / cm3. Contact severely irritates skin, eyes, and mucous membranes. Low toxicity. Used as a food preservative and an antioxidant.

CAS Number16731-55-8
PubChem CID28019
Molecular FormulaK2O5S2
Molecular Weight222.33
Topological Polar Surface Area125
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Heavy Atom Count9
Formal Charge0
Complexity136
SMILES
[O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
InChI
InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChIKey
RWPGFSMJFRPDDP-UHFFFAOYSA-L
Chemical Structure
2D Structure
2D structure of Potassium Metabisulfite
CAS: 16731-55-8
CID: 28019
Formula: K2O5S2
MW: 222.33
Interactive 3D Structure
Loading 3D structure...
View on PubChemRaw 3D data
Computed Properties
PropertyValue
Molecular Weight222.33
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Exact Mass221.8461284
Monoisotopic Mass221.8461284
Topological Polar Surface Area125 Ų
Heavy Atom Count9
Formal Charge0
Complexity136
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently-Bonded Unit Count3
Compound Is CanonicalizedYes

Related Products

CatalogName
GK1356-5kgSodium metabisulfite
GK1356-1kgSodium metabisulfite
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GK4467-1kgPotassium iodate
GK5956-1kgPotassium sulfate
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GX6323-500gPotassium metaborate
GK7805-100gPotassium ferricyanide
GX0055-1kgPotassium sulfite

Alternative Products

CatalogName
40000038-1Potassium Metabisulfite
RG-A260203-01POTASSIUM METABISULFITE discontinued
PMS999Potassium Metabisulfite Solution (3%)
TRC-P698070-10GPotassium Metabisulfite (2:1)
462856-01Potassium Metabisulfite (2:1) discontinued. See 286580
41900100-2Sodium Metabisulfite

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