Keywords: Sodium hexametaphosphate, sodium hexametaphosphate water treatment, sodium hexametaphosphate applications, sodium hexametaphosphate manufacturers, sodium hexametaphosphate SHMP, SHMP
Sodium hexametaphosphate has important applications in water treatment. It is an inorganic compound with the chemical formula (NaPO3)6, usually existing as white or colorless transparent crystals or powder, and is easily soluble in water. In water treatment processes, sodium hexametaphosphate manufactured by Aojin Chemical, plays the following key roles:
1. Water softening: Calcium and magnesium ions in water are the main components of scale formation. Scale not only reduces heat exchange efficiency but can also clog pipes. Sodium hexametaphosphate can undergo complexation reactions with these ions to form soluble complexes, thereby preventing them from forming insoluble precipitates and achieving the purpose of softening water. This characteristic makes it particularly suitable for boiler water treatment and cooling water circulation systems, effectively preventing equipment scaling and extending equipment lifespan.
2. Corrosion inhibition: Metal equipment is easily damaged by electrochemical corrosion when in contact with water. Sodium hexametaphosphate can form a protective film on metal surfaces, isolating the metal from direct contact with water and slowing down the corrosion rate. Especially in circulating cooling water systems, adding an appropriate amount of sodium hexametaphosphate can significantly reduce the corrosion rate of metal equipment, ensuring stable system operation.
3. Dispersing Suspended Solids: Tiny particles, colloids, and other suspended solids in water affect its transparency and quality. Sodium hexametaphosphate has a dispersing effect, ensuring these suspended solids are evenly dispersed in the water, preventing them from agglomerating into large precipitates and maintaining water clarity. This is crucial in wastewater treatment and drinking water purification processes, helping to improve water quality.
4. Adjusting pH Value: Sodium hexametaphosphate solution is weakly alkaline and can be used to adjust the pH of water in water treatment. By properly controlling its addition amount, the pH value of the water can be maintained within a suitable range to meet the requirements of different water treatment processes. For example, in some biological treatment processes, a suitable pH value is essential for the growth and metabolism of microorganisms.
5. Removal of Heavy Metal Ions: Industrial wastewater often contains various heavy metal ions, such as lead, mercury, and cadmium, which pose significant threats to the environment and human health. Sodium hexametaphosphate (SHMP) can form stable complexes with heavy metal ions, causing them to precipitate from the water, thus achieving heavy metal removal. This characteristic makes it valuable in the treatment of electroplating and metallurgical wastewater.
The dosage of sodium hexametaphosphate (SHMP) needs to be precisely controlled based on water quality and treatment requirements. Excessive addition may lead to eutrophication, while insufficient addition will fail to achieve the desired treatment effect. Industrial-grade sodium hexametaphosphate, with an effective ingredient content of 68%, is available in 25kg bags. Contact Aojin for more information on sodium hexametaphosphate (SHMP).
Post time: Mar-13-2026
