Sodium silicate
What is Sodium silicate?
Sodium silicate is a family of inorganic compounds, often referred to as water glass. It is typically produced by fusing sodium carbonate (soda ash) with silicon dioxide (sand) at high temperatures. The resulting glassy solid is then dissolved in water to create a liquid solution.
Is Sodium silicate vegan?
Sodium silicate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is Sodium silicate gluten-free?
It does not contain gluten.
Is Sodium silicate a major allergen?
Sodium silicate is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.
What is Sodium silicate used for?
Sodium silicate solutions are used in the food industry primarily as anti-caking agents in powdered products.
Is Sodium silicate safe?
Sodium silicate is authorised as a food additive in Great Britain and is listed on the Register of Food Additive Authorisations.
Why it's used
Sodium silicate solutions are used in the food industry primarily as anti-caking agents in powdered products. They help prevent powders from clumping together, ensuring a free-flowing texture. It can also be used as a processing aid in certain food applications.
Health notes
Sodium silicate is authorised as a food additive in Great Britain and is listed on the Register of Food Additive Authorisations. European food safety authorities (EFSA) have evaluated its safety. At the low levels typically found in food, it is not expected to pose a health risk. JECFA has also evaluated sodium silicate and did not set a numeric limit (ADI not specified).
Allergen info
Sodium silicate is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels. It does not contain gluten.
Foods that contain Sodium silicate
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