natrium hexametaphosphate
natrium hexametaphosphate
natrium hexametaphosphate,Usually refers to sodium hexametaphosphate, CAS No.10124-56-8.
A type of sodium metaphosphate polymer, which is a transparent glass flake or white powdery crystal with strong hygroscopicity; After moisture absorption, it becomes sticky, easily deliquests in the air, and is soluble in water; Has a high solubility in water, but a slower dissolution rate; The aqueous solution exhibits an acidic reaction.
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natrium hexametaphosphate description
natrium hexametaphosphate ,also called SHMP, is an inorganic substance with molecular formula (NaPO3) 6. It is a white powder crystal, or a colorless transparent glass sheet or block solid. Soluble in water, insoluble in organic solvents. It has strong hygroscopicity. When exposed to the air, it can gradually absorb water and form a viscose. It can form soluble complexes with calcium, magnesium and other metal ions. It is widely used in food and industrial fields.
Specification
Parameter | Grade |
Product Name | SHMP |
Appearance | White powder |
Total Phosphates(P2O5)% | 68max |
Inactive Phosphates(ASP2O5)% | 7.5max |
Fluor% | 0.0030max |
Residue on ignition% | 0.50max |
pH | 5.8~6.5 |
Heavy metal(ASPB)% | 0.001max |
Arsenix% | 0.0003max |
Iron(Fe)% | 0.05max |
Density | 2.181g/cm3 |
Melting point | 616℃ |
Solubility | Soluble in water,insoluble in organic solvents |
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