Sodium Hexametaphosphate
CAS No.: 10124-56-8 / 68915-31-1
Formula: (NaPO3)6
EINECS: 233-343-1
Certification: ISO
Purity: 68% min
Appearance: white odorless crystalline powder.
Solubility: soluble in water but insoluble in organic solvent.
Product Description:
Sodium hexametaphosphate (SHMP) is a salt of composition Na6[(PO3)6]. Sodium hexametaphosphate of commerce is typically a mixture of metaphosphates (empirical formula: NaPO3), of which the hexamer is one, and is usually the compound referred to by this name. Such a mixture is more correctly termed sodium polymetaphosphate. They are white solids that dissolve in water.Density 2.484(20ºC); 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.
Specification:
Index | Industrial Grade | Food Grade |
Appearance | White odorless crystalline powder | |
P2O5 content by wt % | 68.0 min | 68.0 min |
Non-living phosphate (P2O5) by wt % | 7.5 max | 7.5 max |
Iron (as Fe) by wt % | 0.03 max | 0.02 max |
Insoluble matter in water by wt % | 0.04 max | 0.06 max |
pH value (1% sol.) | 5.8~7.0 | 5.8~6.5 |
Arsenic by wt % | - | 0.0003 max |
Heavy metal (as Pb) by wt % | - | 0.001 max |
Fluoride (as F) by wt % | - | 0.003 max |
* Testing method: Industrial Grade: HG/T2519-2007; Food Grade: GB 1890-2005
Application
Used in industries of oil fields, paper-making, 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.
Packing:
25kgs pp bag,23MT/20'FCL
Or 1000kgs ton bag,20MT/20'FCL
