Magnesium Trisilicate
High-Purity Magnesium Silicate Compound for Pharmaceutical, Food, Cosmetic, and Industrial Applications – Pharmaceutical-Grade Antacid, Adsorbent, and Processing Aid.
Magnesium Trisilicate is a high-purity magnesium silicate compound widely used as a pharmaceutical excipient, antacid base, adsorbent, anti-caking agent, and processing aid. It functions as a chemically inert, low-solubility alkaline silicate with controlled neutralization capacity and adsorption performance. Industrial buyers source Magnesium Trisilicate for applications requiring acid buffering, moisture control, or adsorption of impurities in formulations and processing systems.
Natraj Chem supplies consistent-quality Magnesium Trisilicate sourced through audited manufacturers and verified supply channels to ensure batch uniformity, regulatory compliance, and industrial reliability.
- Chemical Formula: 2MgO·3SiO₂·xH₂O
- CAS Number: 14987-04-3
- Class: Alkaline earth metal silicate
- Appearance: White, odorless powder
Chemical Identity
| Chemical Name | Magnesium Trisilicate |
| Synonyms | Magnesium Silicate Hydrate, Trimagnesium Silicate |
| Molecular Formula | 2MgO·3SiO₂·xH₂O |
| CAS Number | 14987-04-3 |
| Molecular Weight | Variable (hydrated compound) |
| Appearance | White, odorless powder |
| Solubility | Insoluble in water and ethanol |
| pH (5% slurry) | 8.5 – 10.5 |
| Chemical Class | Alkaline earth metal silicate |
Technical Properties
| Property | Typical Range |
|---|---|
| Assay (MgO basis) | 20 – 32% |
| Silica Content | 45 – 65% |
| Loss on Ignition | 15 – 30% |
| Bulk Density | 0.3 – 0.7 g/cm³ |
| Particle Size | Customizable (micronized to coarse) |
| Surface Area | High adsorption grade available |
| Neutralization Capacity | Controlled alkaline buffering |
| Thermal Stability | Stable up to ~300°C |
| Reactivity | Reacts slowly with acids |
Key Functional Benefits
Advanced performance characteristics engineered for industrial precision
Controlled Acid Neutralization
Provides sustained buffering in pharmaceutical and chemical formulations rather than rapid neutralization, ensuring stable pH control over extended periods.
High Adsorption Capacity
Effectively adsorbs oils, toxins, and organic compounds, making it ideal for purification and detoxification applications.
Chemically Inert Carrier
Acts as a stable, non-reactive carrier for active ingredients and additives in various formulations.
Improved Powder Flow
Reduces caking and enhances flowability in powder formulations, optimizing manufacturing processes.
Moisture Control
Enhances product stability through effective moisture regulation in sensitive formulations.
Non-Toxic & Physiologically Inert
Pharmaceutical and food-grade options available, ensuring safety for human consumption and regulated applications with full compliance documentation.
Industrial Applications
Versatile chemical compound serving critical functions across diverse industrial sectors
Pharmaceuticals
Antacid formulations, gastrointestinal protectants, tablet excipients, API carrier matrix
Food Processing
Anti-caking additives, filtration aids for food-grade applications
Cosmetics
Absorbent base, oil-control additives, texture modifiers for personal care products
Chemical Mfg
Purification adsorbent, catalyst support in chemical manufacturing
Agriculture
Flow agent in fertilizers and agricultural formulations
Industrial Processing
Clarification agent for oils and waxes in industrial processing
Laboratory
Analytical reagent, chromatography applications
Specialty Chemicals
Filtration aid, carrier material for specialty chemical applications
Available Grades & Specifications
Comprehensive range of high-purity Magnesium Trisilicate grades tailored for pharmaceutical, food, cosmetic, and industrial applications with strict quality control.
Pharmaceutical Grade
IP / BP / USP compliant upon request. Meets strict pharmacopoeia standards for antacid and excipient applications with comprehensive quality documentation.
Purity
Pharmacopoeial grade (IP/BP/USP/EP)
Applications
Antacid, excipient, API carrier
Compliance
IP, BP, USP, EP standards
Documentation
Complete COA & certifications
Food Grade
Complies with food additive regulations for use as anti-caking agent and processing aid. Meets FDA and international food safety standards with full traceability.
Purity
Food-safe grade, meets E553a standards
Applications
Anti-caking agent, food processing aid
Compliance
FDA, EU food additive regulations
Heavy Metals
Controlled to food-grade limits
Cosmetic Grade
Suitable for personal care and cosmetic formulations as an absorbent base, oil-control additive, and texture modifier. Meets cosmetic safety standards.
Purity
Cosmetic-safe grade
Applications
Absorbent, oil control, texture modifier
Particle Size
Fine powder for smooth application
Microbial Limits
Meets cosmetic industry standards
Industrial Grade
Cost-effective technical grade for industrial processing, filtration, and non-regulated applications. Reliable performance with consistent batch quality.
Purity
Technical grade, cost-optimized
Applications
Industrial processing, filtration aid
Bulk Options
Available in large quantities
Specifications
Custom specs available on request
Micronized Grade
Ultra-fine particle size distribution for enhanced surface area and improved dissolution characteristics. Ideal for pharmaceutical and cosmetic applications requiring superior performance.
Particle Size
D50 < 10 microns (customizable)
Surface Area
Enhanced for better performance
Applications
Fast-acting formulations, cosmetics
Flowability
Optimized powder flow characteristics
Adsorbent Grade
Optimized high surface area for maximum adsorption capacity. Ideal for purification processes, detoxification, and removal of organic compounds, oils, and impurities.
Surface Area
High BET surface area
Pore Structure
Optimized for adsorption
Applications
Purification, detoxification, filtration
Capacity
High adsorption capacity for oils/toxins
Custom Specifications Available: Particle size distribution, magnesium content, adsorption capacity, and bulk density can be customized to meet your specific requirements.
Quality Control Parameters
Each lot undergoes comprehensive multi-stage testing to ensure consistent quality, purity, and compliance with industry standards.
Chemical Analysis
Identity Verification
IR spectroscopy and chemical analysis
Content Analysis
MgO and SiO₂ content determination
Physical Testing
Loss on Ignition
Moisture and volatile content testing
Particle Size Analysis
Distribution and uniformity testing
Safety Screening
Heavy Metals Screening
Compliance with pharmacopoeia limits
Microbial Limits
Pharma and food grade testing
Performance
pH Stability Testing
Buffering capacity validation
Physical Properties
Flowability and bulk density evaluation
Packaging Options
- HDPE bags with protective liner
- Fiber drums for moisture protection
- Multiwall paper sacks
- Jumbo bulk bags (FIBC)
- Standard sizes: 25 kg, 50 kg
- Custom bulk packaging available
Contract supply programs available for scheduled manufacturing demand and consistent delivery.
Storage & Handling
Store in tightly sealed containers in a dry, well-ventilated area. Protect from moisture and acidic vapors to maintain product integrity.
Avoid dust generation during handling; use local exhaust ventilation when processing bulk powder quantities.
Shelf Life: Typically 24 months under recommended storage conditions.
Why Industries Source from Natraj Chem
With decades of specialization in inorganic and mineral-based compounds, we combine verified manufacturing partnerships, rigorous quality validation, and reliable supply chain management to deliver consistent, specification-controlled materials.
Established Chemical Expertise Since 1984
Over 40 years of experience in sourcing, qualifying, and supplying specialty inorganic compounds to regulated industries.
Years in Business
Deep Specialization in Inorganic Compounds
Focused expertise in magnesium derivatives, aluminum compounds, and specialty mineral-based chemicals.
Quality Focus
Verified Global Partners
Audited supplier network ensuring consistent quality and regulatory compliance.
Strict Quality Validation
Comprehensive testing protocols and batch verification before release.
Batch-to-Batch Consistency
Rigorous QC systems ensuring predictable performance across all shipments.
Reliable Logistics
Dependable delivery schedules, inventory management, and responsive service.
Documentation-Ready
Complete COA, SDS, TDS, and regulatory compliance statements.
Technical Support
Expert guidance for product selection and application optimization.
Regulatory & Safety Information
Frequently Asked Questions
It is used as an antacid agent, adsorbent, anti-caking agent, pharmaceutical excipient, and purification medium across pharmaceutical, food, cosmetic, and chemical industries.
No. It is practically insoluble in water and forms a suspension rather than dissolving completely.
It reacts slowly with acids, providing sustained, controlled buffering rather than rapid neutralization, making it ideal for antacid formulations requiring prolonged action.
Magnesium Trisilicate contains a defined MgO–SiO₂ ratio (2:3) and specific hydration state optimized for adsorption and antacid functionality, whereas generic magnesium silicate may vary in composition.
We supply standard, micronized, and customized particle size distribution (PSD) grades tailored to specific application needs for optimal performance.
Yes, when supplied in pharmacopoeial-compliant grade (IP/BP/USP/EP) meeting stringent purity standards and microbial limits for pharmaceutical applications.
Yes. Its porous structure and high surface area enable effective adsorption of oils, toxins, impurities, and organic compounds in various purification processes.
Typically alkaline, ranging from 8.5 to 10.5 in a 5% slurry, depending on the specific grade and manufacturing process.
Store in tightly sealed containers in dry conditions, away from acids, moisture, and high humidity. Proper storage ensures 24-month shelf life.
Yes. Industrial suppliers like Natraj Chem provide palletized bulk shipments, contract supply quantities, and scheduled delivery programs for continuous manufacturing operations.
Request Your Technical Data & Quote Today
Sourcing pharmaceutical-grade Magnesium Trisilicate for antacid formulations, industrial adsorption, or specialty applications? Our technical team provides fast, detailed responses with complete documentation.
- Certificate of Analysis (COA) samples
- Technical Data Sheets (TDS) & Safety Data Sheets (SDS)
- Competitive bulk pricing for manufacturing volumes
- Custom particle size and specification quotes
- Regulatory compliance documentation
- Technical consultation for application optimization