Sodium Hexametaphosphate (SHMP) – Production Method and Applications

Sodium Hexametaphosphate (SHMP) is a vital industrial chemical used in multiple sectors due to its effective dispersing and sequestering properties. It is widely utilized in water treatment, ceramics, detergents, oil drilling, and many more applications. This article will cover the production method and various applications of SHMP.

What is Sodium Hexametaphosphate (SHMP)?

Sodium Hexametaphosphate (SHMP) is a polyphosphate compound, widely known for its ability to sequester metal ions and act as a dispersing agent. Its chemical formula is (NaPO₃)₆, and it is typically produced in high purity for industrial use. SHMP is highly effective in a variety of processes that require stability, dispersion, and prevention of scale buildup.

Production Method of SHMP

The production of Sodium Hexametaphosphate involves a series of steps, utilizing phosphoric acid and sodium carbonate or sodium hydroxide as primary raw materials. Here’s a breakdown of the SHMP production process:

1. Raw Material Preparation

• Phosphoric acid (H₃PO₄) is reacted with sodium carbonate (Na₂CO₃) or sodium hydroxide (NaOH) to form sodium dihydrogen phosphate (NaH₂PO₄), a precursor compound.

2. Thermal Polycondensation

• The sodium dihydrogen phosphate undergoes calcination at temperatures between 300–600°C in a rotary kiln or furnace.

• This process initiates the polymerization of phosphate units, creating Sodium Hexametaphosphate (SHMP).

3. Cooling and Milling

• The resulting glassy polyphosphate is cooled rapidly to prevent premature crystallization.

• The SHMP is then ground into a fine powder or granules, ensuring the desired particle size for industrial applications.

4. Quality Control

• The final SHMP product undergoes rigorous testing to ensure it meets quality standards for purity, water solubility, and heavy metal content.

• The product is then packaged in moisture-resistant bags to maintain its quality during transportation and storage.

Applications of SHMP in Various Industries

Sodium Hexametaphosphate is widely used in multiple industrial sectors due to its versatile properties. Below are some key applications:

1. Water Treatment

• Sequestration of Hardness: SHMP binds calcium and magnesium ions, preventing scale formation in boilers, cooling systems, and pipes.

• Scale Prevention: It helps to avoid scale buildup in industrial systems, particularly in high-temperature environments like power plants.

2. Detergents and Cleaners

• Water Softener: SHMP is used to soften water, making detergents more effective by minimizing mineral interference.

• Oil & Grease Removal: It helps emulsify oils and greases, enhancing the stain removal power of cleaners.

3. Ceramic Industry

• Clay Suspension: SHMP ensures uniform suspension of clay particles in ceramic slurries, preventing settling.

• Glaze Improvement: It improves the application of ceramic glazes, making them smoother and more uniform.

4. Textile Industry

• Dye Fixation: SHMP enhances color retention and ensures even dye distribution in textile processing.

• Pre-treatment: It aids in the removal of impurities and brightening of fabrics.

5. Oil Drilling

• Drilling Fluids: SHMP stabilizes the composition of drilling fluids, preventing the aggregation of particles.

• Lubrication & Circulation: It plays a crucial role in improving drilling efficiency and maintaining fluid stability.

6. Metal Treatment

• Descaling Agent: SHMP is used in the removal of oxides and scales from metal surfaces, improving metal cleanliness.

• Corrosion Prevention: It acts as a corrosion inhibitor, protecting metals from rust and degradation.

Why Choose Jiangsu Khonor Chemicals Co., Limited?

• High Purity SHMP: We supply high-quality SHMP with strict quality control measures for optimal industrial performance.

• Reliable and Consistent: Our SHMP products ensure consistent performance in various industrial applications.

• Global Distribution: We offer reliable shipping to markets worldwide, ensuring timely delivery.

• Customized Packaging: Available in various packaging options tailored to meet your specific requirements.

Order Sodium Hexametaphosphate (SHMP) Today!

Looking for a trusted supplier of Sodium Hexametaphosphate? Jiangsu Khonor Chemicals Co., Limited provides top-grade SHMP suitable for a wide range of industrial uses. We guarantee product quality and customer satisfaction.

📞 Contact us today for bulk orders, samples, and technical assistance!