Disodium hydrogen phosphate, anhydrous 98-100.5% (dried basis), Puriss., meets analytical specification of BP, Ph. Eur., USP, FCC, E339, Fluka™
: sec-Sodium phosphate, di-Sodium hydrogen orthophosphate, di-Sodium hydrogen phosphate anhydrous, Sodium hydrogen phosphate, Disodium phosphate, Sodium phosphate dibasic
:7558-79-4
:
:Na₂HPO₄
:MFCD00003496
:141.96 g/mol
:12,08805
:250 °C
:Ambient
:231-448-7
:01-2119489797-11
- Environmentally Preferable:
- Assay (calculated to the dried substance):98.0 - 100.5 %
- Assay of NaH₂PO₄ (calculated to dried substances):Max. 1.0 %
- Loss on drying (105°C, 4 h):Max. 1.0 %
- Loss on drying (130°C):Max. 1.0 %
- pH (1 %,20°C):8.4 - 9.6
- Ammonium (NH₄):Max. 0.002 %
- Arsenic (As):Max. 1 ppm
- Cadmium (Cd):Max. 1 ppm
- Copper (Cu):Max. 0.001 %
- Iron (Fe):Max. 20 ppm
- Mercury (Hg):Max. 1 ppm
- Lead (Pb):Max. 1 ppm
- Zinc (Zn):Max. 0.001 %
- Heavy metals (as Pb):Max. 10 ppm
- Chloride (Cl):Max. 50 ppm
- Fluoride (F):Max. 10 ppm
- Pyrophosphate (as Na4P₂O₇):Max. 2.0 %
- Sulfate (SO₄):Max. 200 ppm
- Water insoluble matter:Max. 0.2 %
- Appearance of the solution:complying
- Reducing impurities:complying
- Residual solvents:complying
- Turbidity:Max. 3.5 NTU
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