sodium hexametaphosphate(shmp)

sodium hexametaphosphate(shmp) food gradeChemical formula : (NaPO3)6 Molecular weight: 611.82Properties: White powder; Density 2.484(20); soluble in water but insoluble in organic solvent; It has got strong hygroscopicity and can absorb humidity from the air to become into pasty form; It may form soluble chelates with ions of Ca, Ba, Mg, Cu, Fe etc. and is a good water treatment chemical.Uses: Used in industries of oil fields, paper production, textile, dyeing, petroleum, chemistry, metallurgy and construction materials etc. as water softener, flotation selecting agent, disperser and high temperature adhesive; In food industry it used as an additive, nourishing agent, quality improver, pH regulator, metal ions chelating agent, adhesive and leavening agent etc.Specification : NO . specificationsIndustrial Grade Food Grade 1Appearancewhite powder2Total phosphates (as P2O5 )% ≥68 68 3Inactive Phosphates (as P2O5 )%≤7.5 7.5 4Iron (Fe) % ≤0.05 0.05 5PH Value 5.8-7.3 5.8-6.5 6Solubility pass pass 7Heavy Metals (as Pb) % ≤0.001 8Arsenic (As)% ≤0.0003 9Fluoride (as F) % ≤0.003 10Water Insoluble matter % ≤0.050.05 11 Polymerization 9-21 9-21