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Potassium Metabisulfite, also known as potassium pyrosulfite, is a white crystalline powder with a pungent sulfur odor. It is a widely used preservative and antioxidant in the food and drinks industry, particularly in winemaking, beer brewing, and fruit preservation. Its chemical formula is K2S2O5. It acts as an antimicrobial, inhibiting the growth of fungi and bacteria, thus keeping food fresh and safe to consume.
Used in Food and Drinks Industry:
Potassium Metabisulfite is used as a preservative for its antimicrobial properties, which inhibit the growth of fungi and bacteria, keeping food fresh and safe to consume.
Used in Winemaking:
Potassium Metabisulfite is used as an antioxidant to prevent the oxidation of wine, maintaining its flavor and quality.
Used in Beer Brewing:
Potassium Metabisulfite is used as a preservative to inhibit the growth of unwanted microorganisms, ensuring the freshness and safety of beer.
Used in Fruit Preservation:
Potassium Metabisulfite is used as a preservative to prevent the spoilage of fruits, extending their shelf life and maintaining their freshness.
However, it is important to note that Potassium Metabisulfite has been linked to some health risks, mainly for those with sulfite allergies or asthma, as it can produce potentially harmful sulfur dioxide gas when added to water or acid.

4429-42-9

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4429-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4429-42-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,2 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4429-42:
(6*4)+(5*4)+(4*2)+(3*9)+(2*4)+(1*2)=89
89 % 10 = 9
So 4429-42-9 is a valid CAS Registry Number.

4429-42-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name POTASSIUM METABISULFITE

1.2 Other means of identification

Product number -
Other names POTASSIUM PYROSULFITE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4429-42-9 SDS

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