Magnesium Phosphate Tribasic (Mg₃(PO₄)₂)
High-Purity Industrial & Pharmaceutical Grade Magnesium Phosphate Tribasic – Reliable Bulk Supplier for Functional Additives, Mineral Sources, and Specialty Applications
Magnesium Phosphate Tribasic (Mg₃(PO₄)₂) is a high-purity inorganic phosphate salt used as a functional additive, mineral source, buffering agent, and processing aid across industrial, pharmaceutical, nutraceutical, ceramic, and specialty chemical applications. It is valued for its chemical stability, low solubility, controlled alkalinity, and compatibility with diverse formulation systems.
Natraj Chem supplies consistent-quality Magnesium Phosphate Tribasic sourced from validated manufacturers, ensuring batch uniformity, specification reliability, and supply continuity suitable for regulated and performance-critical industries.
Chemical Identity
| Parameter | Specification |
|---|---|
| Chemical Name | Magnesium Phosphate Tribasic |
| Synonyms | Trimagnesium Phosphate, Tribasic Magnesium Phosphate |
| Molecular Formula | Mg₃(PO₄)₂ |
| Molecular Weight | 262.86 g/mol |
| CAS Number | 7757-87-1 |
| EINECS | 231-823-0 |
| Appearance | White crystalline powder |
| Odor | Odorless |
| Solubility | Practically insoluble in water; soluble in dilute acids |
| pH (suspension) | Mildly alkaline |
| Chemical Class | Inorganic phosphate salt |
Technical Properties
Precise physical and chemical characteristics engineered for consistent industrial performance.
| Property | Typical Value |
|---|---|
| Bulk Density | 0.4–0.9 g/cm³ |
| True Density | ~2.2 g/cm³ |
| Loss on Drying | ≤ 2.0% |
| Magnesium Content | ~21–23% |
| Phosphate Content | ~70–75% |
| Particle Size | Customizable (micronized / granular) |
| Melting Behavior | Decomposes before melting |
| Thermal Stability | Stable under normal industrial temperatures |
| Hygroscopicity | Low |
| Reactivity | Stable; reacts with strong acids |
Key Functional Benefits
Alkaline Buffering Agent
Maintains pH stability in chemical and pharmaceutical systems for consistent performance.
Flow Improvement
Enhances powder flow and reduces caking in dry blends for optimal processing.
Anti-Caking Properties
Prevents agglomeration in powdered formulations, ensuring product consistency.
Chemical Inertness
Compatible with most organic excipients and polymers under moderate conditions.
Quality Consistency
Reliable performance across production batches and applications.
Industrial Applications
Food Processing
Anti-caking agent, acidity regulator, and mineral fortifier in powdered food products.
Chemical Manufacturing
pH stabilizer, intermediate reagent, and inorganic filler for specialty formulations.
Ceramics & Refractories
Thermal stabilizer and binder modifier in ceramic bodies and refractory glazes.
Fertilizer & Agriculture
Slow-release magnesium and phosphate nutrients for soil enhancement and crop fertilization programs.
Industrial Powder Systems
Free-flow enhancement and storage stability in dry chemical blends and powder formulations.
Grades / Specifications Available
Natraj Chem supplies magnesium phosphate tribasic in multiple industrial grades to match your specific process conditions and regulatory requirements
💡 Need Help Selecting the Right Grade?
Our technical team provides expert consultation on grade selection based on your specific application requirements, processing conditions, and regulatory compliance needs. Contact us to discuss your formulation challenges and receive customized solutions.
Quality Control Parameters
Each supplied batch is verified using standardized analytical procedures to ensure consistency and compliance:
Assay Content
Mg₃(PO₄)₂ purity verification
Magnesium %
Elemental composition check
Phosphate %
Phosphate content validation
Heavy Metals
Comprehensive screening
Particle Size
Distribution analysis
Moisture Content
Controlled levels testing
pH Verification
Alkalinity confirmation
Microbial Limits
For regulated grades
📋 Certificates of Analysis accompany all shipments for complete traceability and documentation
Packaging & Supply
Available packaging formats designed for safe handling, storage, and transportation:
✓ Supply chain planning ensures steady availability for contract volumes, scheduled deliveries, and long-term procurement agreements
Storage & Handling
Proper storage and handling guidelines for optimal product performance and stability:
✓ Under proper storage conditions, product maintains stability for extended periods without performance degradation
Regulatory / Safety Information
Magnesium phosphate tribasic is generally recognized as safe in approved applications when compliant with relevant standards.
Safety Note: Not classified as hazardous under typical chemical transport regulations. Follow standard industrial hygiene practices during handling.
Why Industries Source from Natraj Chem
- Established chemical sector presence since 1984
- Technical sourcing expertise across specialty inorganic materials
- Verified manufacturer network with strict qualification protocols
- Consistent batch traceability and documentation control
- Reliable supply scheduling for production-critical operations
- Quality verification aligned with industrial and regulated standards
- Direct coordination with procurement and formulation departments
The sourcing model ensures consistent quality without production variability risks.
Technical Support & Documentation
Technical assistance is handled by personnel familiar with industrial chemical specifications and performance criteria:
Need Technical Assistance?
Our technical teams coordinate directly with procurement and formulation departments for specification matching, grade selection, and application support.
Contact Technical TeamFrequently Asked Questions
It is used as a buffering agent, mineral source, anti-caking additive, and ceramic stabilizer across pharmaceutical, food, fertilizer, and industrial sectors.
No. It is practically insoluble in water but dissolves in dilute acids.
CAS 7757-87-1.
Food-grade material is available when produced according to approved additive standards.
They differ in magnesium-to-phosphate ratio, alkalinity, and solubility; tribasic form has highest magnesium content and lowest solubility.
Yes. It functions as a diluent and buffering excipient in solid dosage forms.
Standard and micronized grades are supplied, with customized PSD options.
Yes. It provides slow-release magnesium and phosphorus nutrients.
It is chemically stable and generally inert toward most organic materials.
In sealed containers, dry conditions, and away from acids or high humidity.
Request Your Technical Data & Quote Today
Magnesium Phosphate Tribasic is a technically versatile inorganic compound offering controlled alkalinity, stability, and mineral functionality for industrial and regulated applications. With established sourcing expertise, validated manufacturing partners, and rigorous quality verification, Natraj Chem supplies specification-reliable material suitable for consistent production performance and long-term procurement programs.
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