Appearance: transparent glass flake or powder properties: 1, melting point 616 ℃ (decomposition), the relative density of 2.484g / cm3 (20 ℃), soluble in water, insoluble in organic solvents. Colorless transparent glass flake or white granular crystals. Hygroscopicity strong, exposed in air gradually absorb moisture was glue substance. With calcium, magnesium and other metal ions can generate soluble complexes. Details Purpose: heating system with sodium monofluorophosphate hexametaphosphate used in meat, fish sausage, ham, etc., can improve the water holding capacity, high knot, to prevent fat oxidation; for miso, soy sauce can prevent discoloration, increase sticky sex, shortens fermentation period, adjust taste; for fruit drinks, soft drinks, can increase the juice yield, increased viscosity, inhibit the decomposition of vitamin C; for ice cream can improve the expansion ability, increasing volume, enhance the emulsification paste action to prevent damage, improve the taste and color; for dairy products, beverages to prevent the gel precipitation; into beer can clarify wine, prevent turbidity; for beans, canned fruits and vegetables, stable natural pigment, protecting the food color. In addition, sodium hexametaphosphate aqueous solution sprayed on the cured meat, can improve corrosion resistance.