Potassium dihydrogen phosphate, anhydrous 98-100.5% (dried basis), meets analytical specification of NF, Ph. Eur., E340, Fluka™
:7778-77-0
:
:KH₂PO₄
:MFCD00011401
:136.09 g/mol
:13,07744
: Dec. (on heating)
:253 °C
:2.34 g/cm³ (20 °C)
:Ambient
:231-913-4
:01-2119490224-41
- Assay (calculated to the dried substance):98.0 - 100.5 %
- Loss on drying (130°C):Max. 1.0 %
- Loss on drying (105°C, 4 h):Max. 1.0 %
- Water insoluble matter:Max. 0.2 %
- pH (5 %, 20°C):4.2 - 4.5
- Arsenic (As):Max. 1 ppm
- Cadmium (Cd):Max. 1 ppm
- Copper (Cu):Max. 0.002 %
- Iron (Fe):Max. 10 ppm
- Mercury (Hg):Max. 1 ppm
- Sodium (Na):Max. 0.1 %
- Lead (Pb):Max. 1 ppm
- Zinc (Zn):Max. 0.002 %
- Heavy metals (as Pb):Max. 10 ppm
- Chloride (Cl):Max. 10 ppm
- Fluoride (F):Max. 10 ppm
- Sulfate (SO₄):Max. 200 ppm
- KMnO₄ reducing matter (as O):Max. 0.04 %
- Appearance of the solution:complying
- Residual solvents:complying