|
Physical Properties |
|
Physical state at 20 °C |
Solid |
|
Colour |
Colorless crystalline |
|
Odour |
Odorless |
|
pH value |
7.0 - 8.5 |
|
Melting point/ Freezing point [°C] |
70°C |
|
Boiling point [°C] |
220°C |
|
Density [g/cm3] |
1.79 |
|
Solubility in water [% weight] |
Soluble in water |
|
Specification |
|
Appearance |
White crystals or crystalline flakes (turns pink on exposure to air and light) |
|
Assay |
99 - 102% |
|
Insoluble matter |
Max 0.005% |
|
pH (5% solution in water; 20°C) |
7 - 8.5 |
|
Chloride (Cl) |
Max 0.005% |
|
Sulphate (SO4) |
Max 0.005% |
|
Phosphate (PO4) |
Max 0.001% |
|
Ammonium (NH4) |
Max 0.002% |
|
Heavy metal (as Pb) |
Max 0.0005% |
|
Iron (Fe) |
40.5 - 41°C |
|
Copper (Cu) |
Max 0.0005% |
|
Calcium (Ca) |
Max 0.004% |
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