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Sodium Hexametaphosphate Metaphosphoric acid, hexasodium salt CAS:10124-56-8
Name: Sodium Hexametaphosphate (SHMP)
Molecular Formula :(NaPO3)6
Molecular Weight :611.17
CAS No: 10124-56-8
Property: White powder; Density 2.484(20℃); soluble in water but insoluble in organic solvent; It has strong hygroscopic 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.
Index | Standard |
Appearance | white powder |
P2O5 | 68% Min |
Inactive phosphates as P2O5 | 7.5%max |
Fe | 0.05%max |
Water insoluble | 0.1%max |
PH of 1% solution | 3.0-9.0 |
Loss on ignition | 1% max |
As | 1ppm max |
Pb | 1ppm max |
Heavy Metals as Pb | 10ppm max |
Cd | 1ppm max |
Hg | 1ppm max |
Flurode as F: | 10ppm max |
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