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Potassium Metabisulfite

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Potassium Metabisulphite E224


Potassium Metabisulphite E224
  • Potassium Metabisulphite E224
  • Potassium Metabisulphite E224
  • Potassium Metabisulphite E224
  • +2 Potassium Metabisulphite E224
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Approx. Rs 120 / KgGet Latest Price

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Product Details:
Minimum Order Quantity50 Kg
Packaging Size50 kg
Packaging TypeBag
CAS No16731-55-8
Packaging Details50 kg Bag
Physical StatePowder
OdorPungent smell
Solubility In WaterClear and Colorless solution
AppearanceWhite Crystalline free flowing powder from foreign particles
StorageStore it in a cool and dry place away from direct sunlight
Chemical FormulaK2S2O5
Country of OriginMade in India

Potassium Meta Bisulphite E224 Food Grade :

Description: White crystalline powder, free from extraneous Matter with a faint odour of sulphur dioxide gas.

Our Potassium Meta Bisulphite is used as a photographic chemical, dyes intermediate and preservative chemical. These are white free-flowing powder, free from foreign particles. Our range is widely appreciated by clients due to accurate composition, precise pH value, purity and effectiveness.

Potassium Metabisulphite, K2S2O5, also known as potassium pyrosulfite, is a white crystalline powder with a pungent odour. It is mainly used as an antioxidant or chemical sterilant. As a disulfite, it is chemically very similar to sodium Metabisulphite, with which it is sometimes used interchangeably.

Another Name: Potassium Pyrosulifte


  • It is used as a food additive, also known as E224. It is restricted in use and may cause allergic reactions in some sensitive persons.
  • It is used as a bleaching agent in the production of coconut cream. It is used as a reducing agent to break sulphide bonds in shrunken items of clothing made of natural fibres.
  • It is used as an SO2 source (mixed with air or oxygen) for the destruction of cyanide in commercial gold cyanidation processes.
  • Potassium metabisulfite is sometimes added to lemon juice as a preservative.
  • Potassium metabisulfite is used in the textile industry for dyeing and cotton printing.
  • It is a component of certain photographic developers and solutions used in photographic fixing.
  • It is used as a bleaching agent in the production of coconut cream.
  • It is used in some pickles as a preservative.
  • It is used in tint etching iron-based metal samples for microstructural analysis. 
  • It is used in Aam papad as a preservative.

Formula: K2S2O5

Molar mass: 222.32 g/mol

Solubility: Insoluble in ethanol

Physical Parameters:


White crystalline powder

free from foreign particles

Assay as SO2

Min. 64 %

Solubility (10% Aq Solution)

                         Clear Solution

Assay as Sodium Metabisulphite

NLT 95 %



95 % Min


White Crystal

Packaging Type


Packaging Details

25 kg Bag

Molecular weight


Molecular formula


Additional Information:

  • Production Capacity: 50 MT per month
  • Delivery Time: Immediate
  • Packaging Details: 50 Kgs in HDPE Bags/ Fiber Drums.
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    S. P. Chemicals
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