Appearance: white odorless crystalline powder.
Solubility: soluble in water but insoluble in organic solvent.
Characteristic:
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.
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 |
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.
We normally list 2 years as the shelf life in our COA, the real shelf life is actually much longer than 2 years if it's stocked in good condition (bags are sealed enough, away from direct sun-light, moisture and other incompatible chemical materials)