Industrial MSP & DSP – Solutions for New Energy Battery Applications
The rapid growth of the new energy vehicle and energy storage industries has driven unprecedented demand for high-performance battery materials.
Phosphate-based cathode materials – particularly sodium-ion batteries and lithium iron phosphate (LFP) precursors – require ultra-high-purity sodium and phosphorus sources with tight impurity control.
Through years of technical collaboration with battery material manufacturers, we have developed industrial grade Monosodium Phosphate (MSP) and Disodium Phosphate (DSP) that deliver consistent purity, low heavy metals, and excellent batch-to-batch stability – enabling reliable, high-performance battery material production.
High-purity sodium phosphate salts for sodium-ion battery cathodes, LFP precursor, and other new energy battery material applications. Low impurities, tight particle size control, and full traceability.
Why MSP & DSP for New Energy Battery Applications?
| Parameter | Benefit |
| High purity | Main content ≥98.0% – minimizes unwanted impurities in battery material synthesis |
| Low heavy metals | Fe, Cu, Pb, Cr, Ni, Zn each ≤10 ppm – critical for battery performance and safety |
| Consistent sodium content | Stable Na₂O/Na₂CO₃ ratio – essential for reproducible cathode stoichiometry |
| Low chloride & sulfate | Cl⁻ ≤100 ppm, SO₄²⁻ ≤200 ppm – prevents corrosion and side reactions |
| Tight particle size control | Available in fine powder or customized D50 – optimized for solid-state or liquid-phase synthesis |
| Full traceability | Batch-to-batch documentation and retained samples – supports quality management systems |
Typical Applications in New Energy Batteries
| Application | Function | Recommended Product |
| Sodium-ion battery cathodes (e.g., Na₃V₂(PO₄)₃, NaFePO₄, NVP) | Supplies sodium and phosphate ions for cathode material synthesis | MSP or DSP (depending on stoichiometry) |
| Lithium Iron Phosphate (LFP) precursor | Phosphate source for FePO₄ precursor preparation | MSP or DSP |
| Sodium-based electrolyte additives | High-purity sodium salt for electrolyte formulations | MSP (anhydrous) |
| Battery-grade phosphate salts | Raw material for further purification to battery grade | MSP / DSP (premium grade) |
| Research & development | Consistent, high-purity material for new battery chemistry development | MSP / DSP (small batch available) |
Product Specification
Industrial Grade Monosodium Phosphate
| Parameter | Standard Value |
| CAS No. | 7558-80-7 |
| Main content (NaH₂PO₄) | ≥98.0% |
| Sodium (Na) | ≥19.0% |
| pH (1% solution) | 4.2 – 4.8 |
| Moisture | ≤1.0% |
| Appearance | White crystalline powder |
Industrial Grade Disodium Phosphate (DSP)
| Parameter | Standard Value |
| CAS No. | 7558-79-4 (anhydrous) / 10028-24-7 (dihydrate) |
| Main content (Na₂HPO₄) | ≥98.0% |
| pH (1% solution) | 8.8 – 9.2 |
| Moisture | ≤1.0% (anhydrous) / 18-22% (dihydrate) |
| Appearance | White crystalline powder |
Key Customer Benefits
✅ Ultra-high purity – Main content up to 99.0%+ with tight impurity control for consistent battery material performance
✅ Low metals – Fe, Cu, Pb, Cr, Ni, Zn individually controlled – minimizes side reactions and extends battery cycle life
✅ Stoichiometric consistency – Stable sodium and phosphorus ratios batch after batch – essential for reproducible cathode synthesis
✅ Flexible product forms – Anhydrous or dihydrate; fine powder or crystalline; customized particle size
✅ Full documentation & traceability – COA with impurity profile, MSDS, batch retention samples, and supply chain transparency
✅ Scalable supply – From R&D small batches to commercial container quantities
Quality & Compliance
| Item | Details |
| Standard | Industrial grade / Battery grade (custom) |
| Testing | In-house QC + third-party (SGS, BV, Intertek) available |
| Documents provided | COA (with full impurity profile), MSDS, packing list, B/L, origin certificate |
| Certifications (if available) | ISO 9001 |
Product Selection Guide
| Parameter | MSP (NaH₂PO₄) | DSP (Na₂HPO₄) |
| Sodium content | Lower (Na ≥19%) | Higher (Na ≥32%) |
| pH (1% solution) | Acidic (4.2-4.8) | Alkaline (8.8-9.2) |
| Typical use | Na⁺/PO₄³⁻ supply with acidic pH | Na⁺ supply with higher Na/P ratio |
| Best for | NVP, NaFePO₄, acidic synthesis | LFP precursor, alkaline synthesis |
| Common form | Anhydrous powder | Anhydrous or dihydrate |
Recommendation: Contact our technical team with your target cathode chemistry and synthesis conditions. We will recommend the optimal product, form, and particle size.
Handling & Storage Recommendations
Store in a cool, dry, well-ventilated warehouse
Keep in original sealed packaging – hygroscopic
Avoid moisture, direct sunlight, and contact with acids/alkalis (depending on product)
Shelf life: 24 months under proper storage conditions
Handling: Use dust control measures; avoid inhalation of fine powder
Call to Action
Need battery-grade MSP or DSP samples for your new energy application?
Contact us for COA and quotation
yifriendship@sino-phosphate.com
Submit your inquiry online – reply within 24 hours
FAQ
Q: What is the difference between MSP and DSP for battery applications?
A: MSP (NaH₂PO₄) provides a lower sodium-to-phosphorus ratio (1:1) and acidic pH. DSP (Na₂HPO₄) provides a higher sodium-to-phosphorus ratio (2:1) and alkaline pH. The choice depends on your target cathode stoichiometry and synthesis pH requirements.
Q: What are the critical impurities for battery-grade sodium phosphates?
A: Iron (Fe), copper (Cu), lead (Pb), chromium (Cr), nickel (Ni), zinc (Zn), chloride (Cl), and sulfate (SO₄). These can cause side reactions, capacity fade, and safety issues. Our battery-grade options control each to ≤10 ppm where required.
Q: Can I use standard industrial grade for battery material production?
A: For R&D or non-critical applications, standard industrial grade may suffice. For commercial production or high-performance batteries, we strongly recommend our battery-grade option with tight impurity control.
Q: Do you offer custom particle size?
A: Yes. We can adjust D50 from fine powder (10-30μm) for solid-state synthesis to larger crystals (100-200μm) for liquid-phase processes. Please specify your requirements.
Q: Are these products suitable for lithium-ion battery applications?
A: MSP and DSP are primarily used as sodium sources for sodium-ion batteries or as phosphate sources for LFP precursors. For direct use in lithium-ion batteries, please consult your technical team.
Q: What documentation do you provide for quality traceability?
A: Each batch comes with a COA including full impurity profile (Fe, Cu, Pb, Cr, Ni, Zn, Cl, SO₄, heavy metals). We also retain batch samples and can provide supply chain documentation upon request.