Table of Contents
- Product Overview & Specifications
- Key Applications & Industrial Uses
- Implementation Case Studies
- Verified Client Success Stories
- Technical Consultation & Ordering
Sodium Dihydrogen Phosphate Dihydrate (CAS 13472-35-0) Specifications
Basic Parameters
| Parameter | Specification |
|---|---|
| CAS Number | 13472-35-0 |
| Molecular Formula | NaH2PO4·2H2O |
| Molecular Weight | 156.01 g/mol |
| Appearance | White crystalline powder |
| Purity | ≥98% (Food/Pharma Grade: ≥99.5%) |
| Solubility | 58.2 g/100mL (20°C water) |
| pH (1% Solution) | 4.1-4.5 |
| Loss on Drying | ≤22.5% |
Comparative Analysis
| Property | Dihydrate | Anhydrous | Disodium Phosphate |
|---|---|---|---|
| Water Content | 22.5% | ≤0.5% | ≤5% |
| pH Range | 4.1-4.5 | 4.2-4.8 | 8.5-9.5 |
| Thermal Stability | Dehydrates at 60°C | Stable to 200°C | Stable to 250°C |
| Preferred Applications | Food processing, Buffer solutions | High-temp processes | Alkaline formulations |
Industrial Applications & Functional Benefits
1. Food Industry Applications
• Emulsification: Stabilizes oil-water mixtures in processed cheeses (Usage: 0.3-0.5% w/w)
• pH Control: Maintains acidity in beverages (Recommended: 50-200ppm)
• Mineral Fortification: Sodium/phosphate source in nutritional supplements
2. Pharmaceutical Manufacturing
• Buffer Agent: Maintains pH 4.0-4.5 in ophthalmic solutions
• Excipient: Tablet disintegrant (Typical concentration: 2-5%)
• API Intermediate: Precursor in sodium phosphate IV solutions
3. Water Treatment Solutions
• Corrosion Inhibitor: 10-50mg/L dosage in cooling systems
• Scale Prevention: Sequesters calcium ions in boilers
• Metal Finishing: Surface pretreatment for ferrous metals
Implementation Case Studies
Case 1: Dairy Processing Optimization
Challenge: Inconsistent texture in spreadable cheese products
Solution: 0.4% sodium dihydrogen phosphate dihydrate addition
Result: 32% improvement in product uniformity | 18-month shelf life achievement
Case 2: Pharmaceutical Buffer System
Requirement: Stable pH maintenance in antibiotic eye drops
Formula: 0.1M phosphate buffer system (pH 4.3)
Outcome: Complies with USP 〈791〉 specifications | 24-month stability
Verified Client Implementations
Client A: European Food Additive Supplier
Application: Meat product phosphate blends
Annual Usage: 85 metric tons
Benefits Realized: 15% yield improvement | 22% reduction in purge loss
Client B: Asian Pharmaceutical Company
Implementation: Oral rehydration salts (ORS) production
Technical Specifications: BP/JP compliance
Performance: 99.8% batch consistency | 30% faster dissolution rate
Technical Support & Ordering Information
Our ISO 9001-certified production ensures:
• Batch-to-batch consistency (RSD ≤0.8%)
• Custom particle size distribution (50-300μm)
• Tailored packaging solutions (25kg bags to bulk containers)
Contact our phosphate specialists:
Email: info@vivalr.com
Tel: (86) 15866781826
Request: MSDS/TDS | Sample Quotation | Custom Grade Formulation



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