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Sodium hexametaphosphate, often abbreviated as SHMP, is a chemical compound with the formula (NaPO3)6. It is a polyphosphate salt of sodium, consisting of a chain of six phosphate units. The compound is commonly used in various industrial applications and is known by several other names, including sodium polymetaphosphate, Graham's salt, and Calgon.
ITEMS | SPECIFICATIONS | RESULTS |
Appearance | White Powder or Crystal | Conform |
Phosphorus Pentoxide (P 2 O 5 ) | 68.0%min | 68.5% |
Non-Living Phosphate (P 2 O 5 ) | 7.5%max | 7.5%max |
Water Insoluble | 0.04%max | 0.005% |
Iron (Fe) | 0.03%max | 0.006% |
Ph (1% Solution) | 5.8～7.0 | 6.2 |
Conclusion | The product is conformed to the standard of HG/T 2519-2007 | |
Some of the common applications of sodium hexametaphosphate include:
1. Water Treatment:SHMP is often used as a sequestrant and dispersing agent in water treatment processes. It helps in preventing scale formation and corrosion in water pipes and boilers by binding with metal ions.
2. Food Additive:In the food industry, sodium hexametaphosphate is used as a food additive, primarily as a sequestrant, emulsifier, and texturizer. It can be found in processed cheese, seafood, and meat products. It helps improve the texture of processed foods and prevents discoloration.
3. Detergents and Cleaning Products: SHMP is used in detergents and cleaning products as a water softener and as a dispersing agent for dirt and stains. It helps prevent the deposition of minerals on fabrics and surfaces.
4. Industrial Applications: In various industrial processes, sodium hexametaphosphate is employed as a dispersing agent, chelating agent, and buffering agent. It finds use in industries such as textile, ceramics, and paint manufacturing.
5. Oil Industry:In the oil industry, SHMP is used as a deflocculant in drilling muds. It helps in preventing the clumping of particles and aids in the suspension of solids in the drilling fluid.
6. Photography:Sodium hexametaphosphate is used in the photographic industry as a component in certain developing solutions.
7. Mining: In mining and metallurgy, SHMP is utilized as a flotation agent to separate minerals from ores by enhancing the wettability of the particles.
8. Adhesives and Sealants: It is sometimes used in the formulation of adhesives and sealants to control viscosity and improve the stability of the product.
It's important to note that while sodium hexametaphosphate has various applications, its usage should adhere to regulatory guidelines to ensure safety and compliance with standards in each specific industry.
Used as a food additive.
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