Magnesium silicate

Magnesium silicate (CAS 1343-88-0), also known commercially as Ambosol and approved as E553a in food applications, is an inorganic salt used in food, pharmaceutical, and cosmetic manufacturing.

Where is Magnesium silicate used?

• Food processing: anticaking agent that prevents clumping in powdered seasonings and salt blends
• Functions as a filtering aid in food.
• Pharmaceuticals: tablet excipient and adsorbent for removing impurities and fatty acids during oil purification
• Dimagnesium trisilicate is used as an antacid and as a pharmaceutical additive.
• Dimagnesium trisilicate is also used in column chromatography.
• Cosmetics and personal care: carrier for active ingredients in pressed powders, dry shampoos, and talc-alternative products
• Topical creams and ointments: thickener and suspending agent for rheology control
• It also functions as a flow-control additive in dry and semi-solid formulations.

Typical specification

• Mohs hardness of 1.0.
• Specific surface area (BET) of 3-15 m²/g.

Regulatory status

• Assigned INS number 553i.
• Harmonised tariff code 2839900090.

Storage, packaging and handling

• Should be stored on wooden or plastic pallets in dry, cool and well-ventilated closed warehouse areas to avoid moisture exposure.

Frequently asked questions about Magnesium silicate

Is magnesium silicate chemically stable in food formulations?

It is chemically stable and does not react with other food ingredients.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.