di-Kaliumhydrogenphosphat, wasserfrei 98,0-100,5% (alkalimetrisch, berechnet an wasserfreien Substanzen), EMPROVE® api Ph. Eur., BP, USP salzarm, SAFC®
Lieferant: Merck
Synonyme:
di-Kaliumphosphat, di-Kaliumorthophosphat, Kaliumphosphat dibasisch, Dikaliumhydrogenphosphat, sek. Kaliumphosphat
1.09828.1000
1.09828.1000EA
379
EUR
1.09828.1000
di-Kaliumhydrogenphosphat, wasserfrei 98,0-100,5% (alkalimetrisch, berechnet an wasserfreien Substanzen), EMPROVE® api Ph. Eur., BP, USP salzarm, SAFC®
di-Kaliumhydrogenphosphat
Formel:
K₂HPO₄ Molecular Weight: 174,18 g/mol Schmelzpunkt: 340 °C Dichte: 2,3 g/cm³ (20 °C) Lagertemperatur: Raumtemperatur |
MDL:
MFCD00011383 CAS-Nummer: 7758-11-4 EINECS: 231-834-5 Merck Index: 13,07743 |
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Spezifikation Testergebnisse
Assay (alkalimetric, calculated on dried substance) | 98.0 - 100.5 % |
Identity | passes test |
Appearance of solution | passes test |
Insoluble substances | ≤ 0.2 % |
pH-value (5 %; water) | 8.5 - 9.6 |
Carbonate | passes test |
Chloride (Cl) | ≤ 0.02 % |
Fluoride (F) | ≤ 0.001 % |
Sulfate (SO₄) | ≤ 0.1 % |
Heavy metals (as Pb) | ≤ 0.0010 % |
Al (Aluminium) | ≤ 0.0003 % |
As (Arsenic) | ≤ 0.0002 % |
Fe (Iron) | ≤ 0.0010 % |
Na (Sodium) | ≤ 0.1 % |
Na (sodium) | passes test |
Potassium dihydrogen phosphate | ≤ 2.5 % |
Potassium dihydrogen phosphate and tri- Potassium phosphate | passes test |
Residual solvents (ICH Q3C) | excluded by manufacturing process |
Reducing substances | passes test |
Loss on drying (130 °C) | ≤ 1.0 % |
Total aerobic microbial count | ≤ 500 CFU/g |
Bacterial endotoxins | < 1.1 |
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). | |
Corresponds to Ph Eur, BP, USP |
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