Что такое гексаметафосфат натрия?


Physical characteristics and appearance
Sodium hexametaphosphat (referred to as SHMP) is a kind of inorganic compound with a molecular formula (NAPO3) 6. Sodium hexametaphosphate is a type of sodium phosphate polymer, which is a polyphosphate. Also known as sodium polarizing sodium phosphate, sodium polarizing, sodium polarized sodium phosphate, and graham salt. It is formed by six phosphate ions (PO3) N, and the sodium ions (NA+) are combined with phosphate ions.
The appearance is colorless transparent glass solid or white powder, which is dissolved in water to a large degree of solubility. However, the dissolution speed is slow, and the aqueous solution is acidic. Sodium hexametaphosphate has strong hygroscopic absorption and starts to become sticky after moisture absorption. It is used in many fields and is commonly used as food additives, industrial purposes, and water treatment agents.

Application in the food industry
Sodium hexametaphosphate is widely used in the food industry. As a food additive, it is often used as a chelating agent and a pouring agent, which can improve the texture and taste of food. In food processing, Sodium Hexametaphosphate can also be used as a chelating agent, binding to metal ions to prevent oxidation and deterioration, and extend the shelf life of food. In addition, it is often used in the processing process of dairy products, which plays a role in improving stability and texture.

Application in the industrial field
Sodium hexametaphosphate is also widely used in industry. It is an excellent dispersant and chelating agent that can be used in the production process of ceramics, textiles, leather, and other industries. In the production of paint and coatings, Sodium Hexametaphosphate can be used as a dispersant to make the pigments evenly distributed and improve the quality of the coating. It is also often used for water treatment. Through chelating metal ions, it prevents the production of scale and maintains the normal operation of pipelines and equipment.
Water treatment field
In the field of water treatment, Sodium Hexametaphosphate, as a polyphosphate, has good chelating performance and can be used to prevent the precipitation of metal ions such as calcium and magnesium in water, thereby preventing the formation of scale. This function is widely used in the processing process of industrial and family water.

The consideration of environment and health
Although Sodium Hexametaphosphate has been widely used in many areas, there is some controversy in some environments and health. Long-term intake may hurt human health, so the use of food and drinking water needs to be cautious. In industrial production and water treatment, it also needs to be used strictly by the prescribed dosage and methods to reduce the potential impact on the environment.

In general, Sodium Hexametaphosphate, as a multifunctional compound, has a wide range of applications in many fields such as food, industry, and water treatment. However, it is necessary to pay attention to reasonable control during use to ensure its safety and environmental protection.

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