Molekula
Magnesium trisilicate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Magnesium trisilicate is a naturally occurring mineral compound used primarily as an antacid and adsorbent in pharmaceuticals, food supplements, and industrial applications to neutralize stomach acid and bind toxins. It is also employed as a clarifying agent in oils and fats. This white, odorless powder has a CAS number of 14987-04-3, with the molecular formula H₂Mg₂O₉Si₃ and a molecular weight of 278.87. It carries no signal word but is classified with hazard statement H413 (may cause long-lasting harmful effects to aquatic life), and stores safely at ambient conditions. Molekula supplies magnesium trisilicate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Bulk density | 350-500 g/l |
| Total Aerobic Count | max 2000 CFU/g |
| Arsenic (As) | max 0.0004% |
| Sulphates (SO4)(2-) | max 0.5% |
| Mould & Yeast | Max 200 CFU/g |
| Water soluble salts | max 1.5% |
| Chloride (Cl) | max 0.05% |
| Acid absorption (0.1N HCl/g) | min 100ml |
| Assay MgO (on ignited basis) | min 29.0% |
| Assay SiO2(on ignited basis) | min 65.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Slightly hygroscopic powder |
| Odour | Odorless |
Source: PubChem CID 5311266 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 32412246 |
| CAS Number | 14987-04-3 |
| IUPAC Name | dimagnesium;dioxido-bis[[oxido(oxo)silyl]oxy]silane |
| Molecular Formula | H2Mg2O9Si3 |
| Molecular Weight | 278.87 |
| Exact Mass | 259.8602 |
| SMILES | [O-][Si](=O)O[Si]([O-])([O-])O[Si](=O)[O-].[Mg+2].[Mg+2] |
| InChIKey | GXGAKHNRMVGRPK-UHFFFAOYSA-N |
| InChI | InChI=1S/2Mg.O8Si3/c;;1-9(2)7-11(5,6)8-10(3)4/q2*+2;-4 |
| PubChem CID | 5311266 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| Tariff Code | 283990 |
Safety & GHS
Hazard statements
- H413 May cause long lasting harmful effects to aquatic life
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Dicarbocalm
- Mag trisil co
- Magnesium mesotrisilicate
- Magnesium silicate (Mg2Si3O8)
- Magnesium silicates magnesium trisilicate
- Magnesium trisilicate anhydrous
- Magnesium trisilicate USP
- Magnosil
- SILICIC ACID (H4SI3O8), MAGNESIUM SALT (1:2)
- VIRUS BLOCKER CL-40
Frequently asked questions
What is magnesium trisilicate commonly used for?
Magnesium trisilicate is primarily used as an antacid to neutralize stomach acid, as an anti-diarrheal agent, and in pharmaceutical formulations for its adsorbent properties.
What is the chemical formula and molecular weight of magnesium trisilicate?
The chemical formula is H₂Mg₂O₉Si₃, and the molecular weight is 278.87 g/mol.
How should magnesium trisilicate be stored?
Store magnesium trisilicate in a cool, dry place at ambient temperature, away from moisture and incompatible substances.
What grades or purity levels of magnesium trisilicate does Molekula supply?
Molekula supplies pharmaceutical-grade magnesium trisilicate (meeting USP/EP/JP standards) for regulated applications.
Can Molekula supply magnesium trisilicate in bulk quantities?
Yes, Molekula can provide magnesium trisilicate in bulk, with quantities and packaging tailored to your requirements.
What documentation is provided with a magnesium trisilicate order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.