Magnesium trisilicate hydrate
Magnesium trisilicate hydrate (CAS: 14987-04-3), with the chemical formula 2MgO · 3SiO2 · aq, is an inorganic compound that serves as a valuable synthetic reagent. It is known for its absorbent and antacid properties. This compound finds utility in various chemical synthesis processes and as an ingredient in pharmaceutical formulations, particularly where a slow-acting antacid is required.
- IUPAC
- Magnesii trisilicas,di-Magnesium trisilicate

Antacid Agent
Magnesium trisilicate hydrate acts as a slow-acting antacid, neutralising excess stomach acid. Its adsorbent properties also help to bind to toxins and enzymes in the gastrointestinal tract.
Chemical Synthesis
This compound is utilized as a reagent in various inorganic and organic synthesis pathways. Its reactive magnesium and silicate components can be incorporated into new chemical structures or used in catalytic processes.
Adsorbent
Due to its high surface area, magnesium trisilicate hydrate can function as an adsorbent for various substances. It is often used in chromatography or for the purification of liquids and gases.
| Molecular weight | 260.86 (anhydrous basis) |
|---|---|
| Linear formula | 2MgO · 3SiO2 · aq |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Pharmacopeia | testing conforms to Pharmacopeia |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Magnesium trisilicate hydrate used for?
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Magnesium trisilicate hydrate is primarily used as a slow-acting antacid due to its ability to neutralise stomach acid, and also as an adsorbent and a reagent in chemical synthesis.
What is the CAS number and chemical formula for Magnesium trisilicate hydrate?
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The CAS number for Magnesium trisilicate hydrate is 14987-04-3, and its chemical formula is 2MgO · 3SiO2 · aq.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Magnesium trisilicate hydrate that testing conforms to Pharmacopeia. Please contact us for specific purity and assay details on our current stock, as we do not represent this product as USP, BP, or EP grade without explicit verification.
How should Magnesium trisilicate hydrate be handled safely?
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When handling Magnesium trisilicate hydrate, it is recommended to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used to avoid inhalation. The WGK (German water hazard class) is 3, indicating a significant hazard to water.
Is Magnesium trisilicate hydrate a controlled substance?
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Based on the provided data, Magnesium trisilicate hydrate is not listed as a controlled substance.
How is Magnesium trisilicate hydrate packed, shipped, and exported?
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Tech Serve Solutions packs and ships Magnesium trisilicate hydrate in compliance with all relevant regulations for chemical transport, serving both domestic and international customers.
How can I request a sample or quote for Magnesium trisilicate hydrate?
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To request a sample or quote for Magnesium trisilicate hydrate, please use the contact form on our website or call our sales team, providing the product name and CAS number (14987-04-3).
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