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Molecular Formula: NaH2PO4 · 2H2O
Properties: White or colorless crystal, relative density at 1.915, melting point is 57.4 ℃. Anhydrous material is powder form, and melting point at 190℃. All them are soluble in water, but not in organic solvent.
Uses: For water treatment to boiler, also as buffering agent to acidity, detergent, cleaning agent, dyeing flux, for tanning and electroplating. Used for food additive it is mainly used as buffering agent, emulsification agent, nourishment, and etc.
Packing and storage: 25kg, 50kg net bags, store at a clean, dry and draughty place, avoid moisture
Standard executed: HG/T2767-1996
Item |
NaH2PO4 · 2H 2O |
|
Industrial Grade |
Food Grade |
|
Assay, %≥ |
98.0 |
98.0 |
Phosphorus pentoxide, % ≥ |
44.5 |
44.5 |
pH, (1% water solution) |
4.2-4.8 |
4.2-4.8 |
Heavy metal (as Pb), %≤ |
-- | 0.001 |
Arsenic (As), %≤ |
-- | 0.0003 |
Fluoride (as F), %≤ |
-- | 0.005 |
Water insoluble, %≤ |
0.10 |
0.10 |
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