CAS Number: 7681-57-4

E-Number: E223

EC Number: ---

Mol. Formula: Na2S2O5

Pack Sizes


25 kg Kilo Bag Option for Sodium Metabisulphite

What is Sodium Metabisulphite?

A white, crystalline powder commonly used in the food, beverage, pharmaceutical, and industrial sectors, Sodium Metabisulphite has the chemical formula Na2S2O5. It is a powerful addition to various food products. The beverage and pharmaceutical industry uses the antioxidant properties to make it a valuable addition.

Sodium Metabisulphite manufacturing occurs by combining sodium carbonate and sulfur dioxide, which is then heated and cooled to form crystals. They are then ground and packaged for distribution. The production of Sodium Metabisulphite is typically carried out in large-scale industrial facilities using specialized equipment and strict quality control measures to ensure the purity and consistency of the product.

A versatile chemical compound widely used, Sodium Metabisulphite is used within various industries for its beneficial properties. In the food industry, it is a common preservative, antioxidant, and colourant in products such as wine, beer, fruit juices, and dried fruits. Additionally, it is a dough conditioner in baked goods and a bleaching agent in sugar processing. Sodium Metabisulphite is approved for use in the UK by the Food Standards Agency (FSA) and is considered safe at appropriate levels.

In beverage applications, it is an antioxidant in wine, beer, and cider, which can cause spoilage and discolouration. It is also a preservative in fruit juices and soft drinks. In pharmaceuticals, it is an antioxidant in some medicines and a sterilizing agent in some medical devices. Sodium Metabisulphite is an antioxidant and preservative in cosmetic products. In the industrial sector, paper and textile production alongside water treatment use Sodium Metabisulphite.

Sodium Metabisulphite at Kilo Ltd.

At Kilo, we keep a stock of Sodium Metabisulphite on-site to ensure that our customers in the UK and Ireland receive top-quality products. Our Sodium Metabisulphite is supplied by an accredited and vetted manufacturer, ensuring we provide only the best products to our customers.

If you need any information on specifications, Material Safety Data Sheets (MSDSs), pricing, or any other details, please do not hesitate to get in touch. You can click on any of the buttons on our website or visit our contact page. We are always here to help and provide the information you need.

Industry Applications

Foods | Jams, Fruits, Baking
Beverages | Wines, Ciders, Beers
Cosmetics | Paracetomol, Anaesthetics, Epinepherine
Industrial | Antifreeze, Coolant, Artificial Smoke/Fog


This information is provided as a guide and is by no means legally binding. Suggestions on dosage rates, specific applications and anything else related to detailed quality information can be provided by our quality team or requested directly to our manufacturer.