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ChemicalBook >> CAS DataBase List >> POTASSIUM METABISULFITE

POTASSIUM METABISULFITE

POTASSIUM METABISULFITE price.
  • $14 - $3560
  • Product name: POTASSIUM METABISULFITE
  • CAS: 16731-55-8
  • MF: K2O5S2
  • MW: 222.32
  • EINECS:240-795-3
  • MDL Number:MFCD00167605
  • Synonyms:Potassium disulfite, extra pure, NF, Ph Fran, E 224;Potassium disulfite/ 95+%;POTASSIUM METABISULF;PotassiuM Metabisulfite, extra pure, 97% 25GR;Potassium metabisulfite,97%,extra pure;POTASSIUM DISULFITE FOR ANALYSIS EMSURE;Disulfurous acid,potassiuM salt (1:2);Potassium metasulfite
28 prices
Selected condition:
Brand
  • aablocks
  • AK Scientific
  • Chem-Impex
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
  • Usbiological
Package
  • 1g
  • 5g
  • 10g
  • 25g
  • 100g
  • 250g
  • 500g
  • 1kg
  • 2kg
  • 2.5kg
  • 5kg
  • 25kg
  • 2.5 kg
  • 25 g
  • 500 g
  • Manufactureraablocks
  • Product numberAA001X89
  • Product descriptionPotassium metabisulfite ≥97%
  • Packaging100g
  • Price$14
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001X89
  • Product descriptionPotassium metabisulfite ≥95%
  • Packaging500g
  • Price$21
  • Updated2026-05-28
  • Buy
  • ManufacturerAK Scientific
  • Product number5222AF
  • Product descriptionPotassiummetabisulfite
  • Packaging100g
  • Price$74
  • Updated2021-12-16
  • Buy
  • ManufacturerChem-Impex
  • Product number36625
  • Product descriptionPotassium disulfite ≥98%(Assaybytitration)
  • Packaging500G
  • Price$128.4
  • Updated2026-05-19
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number1.05057
  • Product descriptionPotassium disulfite foranalysisEMSURE?
  • Packaging1kg
  • Price$134
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number1.05057
  • Product descriptionPotassium disulfite foranalysisEMSURE?
  • Packaging2.5kg
  • Price$258
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number60508
  • Product descriptionPotassium disulfite BioUltra, ≥97.0% (RT)
  • Packaging5kg
  • Price$433
  • Updated2023-06-20
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number1.05056
  • Product descriptionPotassium disulfite EMPROVE?ESSENTIALPhEur,NF,E224
  • Packaging5kg
  • Price$547
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number1.05056
  • Product descriptionPotassium disulfite EMPROVE?ESSENTIALPhEur,NF,E224
  • Packaging25kg
  • Price$3560
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number12619
  • Product descriptionPotassium disulfite ≥99% (HPLC)
  • Packaging1kg
  • Price$83.3
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number1.05057
  • Product descriptionPotassium disulfite foranalysisEMSURE?
  • Packaging500g
  • Price$84.9
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number55777
  • Product descriptionPotassium disulfite analytical standard
  • Packaging1g
  • Price$63.2
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberP2522
  • Product descriptionPotassium disulfite ≥98%
  • Packaging500g
  • Price$122
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number60508
  • Product descriptionPotassium disulfite BioUltra, ≥97.0% (RT)
  • Packaging250g
  • Price$52.7
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberP2480
  • Product descriptionPotassium Disulfite >97.0%(T)
  • Packaging500g
  • Price$46
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberP2480
  • Product descriptionPotassium Disulfite >97.0%(T)
  • Packaging25g
  • Price$28
  • Updated2026-04-30
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA001X89 Potassium metabisulfite ≥97% 100g $14 2026-05-28 Buy
aablocks AA001X89 Potassium metabisulfite ≥95% 500g $21 2026-05-28 Buy
AK Scientific 5222AF Potassiummetabisulfite 100g $74 2021-12-16 Buy
Chem-Impex 36625 Potassium disulfite ≥98%(Assaybytitration) 500G $128.4 2026-05-19 Buy
Sigma-Aldrich 1.05057 Potassium disulfite foranalysisEMSURE? 1kg $134 2026-04-30 Buy
Sigma-Aldrich 1.05057 Potassium disulfite foranalysisEMSURE? 2.5kg $258 2026-04-30 Buy
Sigma-Aldrich 60508 Potassium disulfite BioUltra, ≥97.0% (RT) 5kg $433 2023-06-20 Buy
Sigma-Aldrich 1.05056 Potassium disulfite EMPROVE?ESSENTIALPhEur,NF,E224 5kg $547 2026-04-30 Buy
Sigma-Aldrich 1.05056 Potassium disulfite EMPROVE?ESSENTIALPhEur,NF,E224 25kg $3560 2026-04-30 Buy
Sigma-Aldrich 12619 Potassium disulfite ≥99% (HPLC) 1kg $83.3 2026-04-30 Buy
Sigma-Aldrich 1.05057 Potassium disulfite foranalysisEMSURE? 500g $84.9 2026-04-30 Buy
Sigma-Aldrich 55777 Potassium disulfite analytical standard 1g $63.2 2026-04-30 Buy
Sigma-Aldrich P2522 Potassium disulfite ≥98% 500g $122 2026-04-30 Buy
Sigma-Aldrich 60508 Potassium disulfite BioUltra, ≥97.0% (RT) 250g $52.7 2026-04-30 Buy
TCI Chemical P2480 Potassium Disulfite >97.0%(T) 500g $46 2026-04-30 Buy
TCI Chemical P2480 Potassium Disulfite >97.0%(T) 25g $28 2026-04-30 Buy

Properties

Melting point :190°C
Density :2.34 g/cm3
bulk density :1000-1300kg/m3
vapor density :2.3 (vs air)
storage temp. :Store at +5°C to +30°C.
solubility :H2O: 0.1 M at 20 °C, clear, colorless
form :Powder/Solid
Specific Gravity :2.3
color :White to slightly yellow
PH :2.5-4.5 (25℃, 0.1M in H2O)
Odor :Odorless
PH Range :3-4.5 at 22.2 g/l at 25 °C
Water Solubility :Soluble in water. Insoluble in ethanol.
Sensitive :Air Sensitive
Decomposition :150°C
λmax :267nm(H2O)(lit.)
Merck :14,7645
Cosmetics Ingredients Functions :REDUCING
HAIR WAVING OR STRAIGHTENING
PRESERVATIVE 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
SMILES :[K+].[K+].[O-]S(=O)S([O-])(=O)=O
EPA Substance Registry System :Disulfurous acid, potassium salt (1:2) (16731-55-8)
Absorption :cut-off at 308nm in H2O at 0.1M

Safety Information

Symbol(GHS): Corrosion (GHS05)Exclamation Mark (GHS07)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Description

It serves as a component of certain photographic developers and its solution is used in photographic fixing, in the textile industry for dyeing and cotton printing. It is utilized to precipitate gold from solution in aqua regia.

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