Information
Specification category：
| Product No. | Product name | specifications |
|
1.01503.020 | Sodium dihydrogen phosphate dihydrate | AR500g |
|
1.01503.030 | Sodium dihydrogen phosphate dihydrate | AR25kg/Sack |
|
1.01503.040 | Sodium dihydrogen phosphate dihydrate | CP500g |
|
1.01503.050 | Sodium dihydrogen phosphate dihydrate | CP25kg/Sack |
|
1.01503.060 | Sodium dihydrogen phosphate dihydrate | AR25kg/drum |
|
1.01503.090 | Sodium dihydrogen phosphate dihydrate | AR500g |
Characteristic：
Appearance and properties: colourless to white crystal or crystallinity powder.
pH value: 4.5(12 g/L H2O,25℃)
Relative density (g/cm3) (water=1): 1.915
Melting point(℃): 60
Concentration: sterling
Solubility: Soluble in water at 25℃ to 12.14%. Dissolved in ethanol.
Technical indicators：
| Item | AR | CP |
|
Assay(NaH2PO4•2H2O) | ≥99.0% | ≥98.0% |
|
pH valuepH value(50g/L solution,25℃) | 4.2~4.6 | 4.2~4.6 |
|
Clarity of solution | Pass3 | Pass5 |
|
Insoluble matter in water | ≤0.01% | ≤0.02% |
|
Chloride(Cl) | ≤0.005% | ≤0.01% |
|
Sulfate(SO4) | ≤0.005% | ≤0.01% |
|
Nitrate(NO3) | ≤0.001% | ≤0.002% |
|
Ammonium NH4) | ≤0.002% | -- |
|
Potassium(K) | ≤0.02% | ≤0.1% |
|
Iron(Fe) | ≤0.001% | ≤0.005% |
|
Arsenic(As) | ≤0.0002% | ≤0.0005% |
|
Heavy metals(as Pb) | ≤0.001% | ≤0.005% |
|
Substance deposit in ammonium | ≤0.01% | ≤0.02% |
Metal Compounds
PCB Solutions
Chemical Reagents