Molecular Formula: (NaPO3) 6
Molecular Weight: 611.82
Properties: 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 softener.
Uses: For industrial materials, it mainly used for 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.
Packing and storage: 25Kg, 1000Kg bags, stored in draughty, dry and clean place, avoid moisture.
Standard executed: HG/T2837-1997
|
Item |
Food Grade |
|
Total phosphates (as P2O5 ), % ≥ |
68.0 |
|
Inactive Phosphates (as P2O5 ), % ≤ |
7.5 |
|
Iron (Fe), % ≤ |
0.05 |
|
pH-value, |
5.8-6.5 |
|
Solubility, |
Qualified |
|
Heavy metal (Pb), % ≤ |
0.001 |
|
Arsenic (As), % ≤ |
0.0003 |
|
Fluoride (as F), % ≤ |
0.003 |
|
Water insoluble, % ≤ |
0.05 |
|
Polymerization, |
12-21 |