molecular formula: (NH4)2HPO4
CAS: 7783-28-0
Appearance:
White crystal
Properties:
White crystalline or white crystalline or powder. Have ammonia flavour. The relative density 1.619, melting point ℃ 155. Exposed to air will lose about % of 8 ammonia. Soluble in water, insoluble in alcohol.
Use:
Analytics reagents, such as PH slow granule, magnesium, zinc, nickel, etc, electrochemical analysis of precipitation agent supporting electrolyte, is also used for seed corrosion inhibitors, mixing agent, medium reagents.
Details:
Test item | Specification | |
Reagent grade | Pharmaceutical grade | |
Appearance | Conform | Conform |
Assay /% | ≥98.5 | ≥98.0 |
Clarify degrees test | Conform | Conform |
Water in soluble /% | ≤0.005 | ≤0.01 |
Chloride (Cl)/% | ≤0.0005 | ≤0.004 |
Sulfur compounds (SO4)/% | ≤0.005 | ≤0.01 |
Nitrate (NO3)/% | ≤0.0005 | ≤0.001 |
Ferric (Fe)/% | ≤0.0005 | ≤0.002 |
Arsenic (As) /% | ≤0.0005 | ≤0.002 |
Heavy metal (Pb)/% | ≤0.0005 | ≤0.001 |
Alkali /% | ≤0.1 | ≤0.2 |
