Anhydrous disodium hydrogen phosphate (DSP), also known as sodium phosphate dibasic anhydrous, is a white crystalline or granular powder with excellent solubility in water. With the molecular formula Na₂HPO₄, it is widely used across various industries for its buffering properties and ability to act as a reliable source of phosphate and sodium ions. Its anhydrous form makes it particularly useful in applications requiring low moisture content.
Parameter |
Value |
Chemical Formula |
Na₂HPO₄ |
Molecular Weight |
141.96 g/mol |
Appearance |
White crystalline powder or granules |
Purity (%) |
≥ 98.0 |
pH (1% solution, 25°C) |
8.6–9.6 |
Solubility (g/100 ml at 25°C) |
6.8 |
Moisture Content (%) |
≤ 0.5 |
Heavy Metals (ppm) |
≤ 10 |
Insoluble Matter (%) |
≤ 0.05 |
· Anhydrous form for applications requiring minimal moisture.
· High solubility in water and stable buffering capacity.
· Non-toxic and safe for use in food and pharmaceutical applications.
· Long shelf life due to its low moisture content.
· Consistent quality and high purity.
· Enhanced stability compared to hydrated forms.
· Versatile application across industries.
· Eco-friendly and compliant with industry standards.
1. Food Industry: Acts as an emulsifier, stabilizer, and pH regulator in processed foods and beverages.
2. Pharmaceuticals: Used as a buffering agent in medicinal formulations and saline solutions.
3. Water Treatment: Functions as a softening agent and corrosion inhibitor.
4. Chemical Industry: Used in the production of detergents, ceramics, and electroplating solutions.
5. Agriculture: Provides phosphorus for fertilizer formulations.
Anhydrous DSP is produced by the neutralization of phosphoric acid with sodium hydroxide or sodium carbonate, followed by controlled drying processes to remove all water content. Advanced quality control measures ensure high purity and consistency.
Anhydrous DSP dissociates in water to provide HPO₄²⁻ ions, serving as an effective buffer to stabilize pH levels. Its anhydrous form ensures optimal performance in moisture-sensitive applications and facilitates precise control in chemical reactions.
· Customization of product specifications to meet specific application needs.
· Technical support for product implementation and optimization.
· Efficient logistics and reliable supply chain management for timely delivery.
· Packaging: Available in 25 kg moisture-proof bags, 500 kg jumbo bags, or customized options.
· Storage: Store in a dry, cool, and ventilated area. Keep tightly sealed to prevent absorption of moisture and contamination.
· Avoid inhalation of dust; use appropriate protective equipment during handling.
· In case of skin or eye contact, rinse thoroughly with water and seek medical attention if irritation occurs.
· Store away from strong acids, oxidizing agents, and moisture.
· Dispose of unused material and packaging according to local environmental regulations.
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