Potassium dihydrogen phosphate, crystallised, EMPROVE® ESSENTIAL JPC, NF, Ph. Eur., BP, E340, SAFC®
Supplier: EMD MILLIPORE – PCS CA EXCEP
Synonyms:
Monopotassiumphosphate, prim.-Potassium phosphate, Monopotassium phosphate, Potassium phosphate monobasic, Monobasic Potassium Phosphate, Potassium dihydrogen orthophosphate
Crystals.
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 (*).
Certifications: Corresponds to Ph. Eur., BP, JPC, NF, E 340
Conforms to the purity criteria on food additives according to the current European Commission Regulation.
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Formula:
KH₂PO₄ MW: 136.09 g/mol Boiling Pt: ∼100 °C (1013 hPa) Melting Pt: 253 Density: 2.3 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00011401 CAS Number: 7778-77-0 EINECS: 231-913-4 REACH: 01-2119490224-41 Merck Index: 13,07744 |
Specification Test Results
| Assay (alkalimetric, calculated on dried substance) | 98.0 - 100.5 % |
| Assay (alkalimetric; dried substance) | ≥ 99.0 % |
| Appearance of solution | passes test |
| Identity | passes test |
| Insoluble substances | ≤ 0.2 % |
| pH-value (1 %; water) | 4.2 - 4.8 |
| pH-value (2 %; water) | 4.2 - 4.6 |
| pH-value (5 %; water) | 4.2 - 4.5 |
| Carbonate | passes test |
| Condensed phosphate | passes test |
| Chloride (Cl) | ≤ 0.009 % |
| Fluoride (F) | ≤ 0.0010 % |
| Sulfate (SO₄) | ≤ 0.017 % |
| Heavy metals (as Pb) | ≤ 0.0010 % |
| Al (Aluminium) | ≤ 0.0005 % |
| As (Arsenic) | ≤ 0.0001 % |
| Cd (Cadmium) | ≤ 0.0001 % |
| Fe (Iron) | ≤ 0.0010 % |
| Hg (Mercury) | ≤ 0.0001 % |
| Na (Sodium) | passes test |
| Pb (Lead) | ≤ 0.0001 % |
| Residual solvents (ICH Q3C) | excluded by manufacturing process |
| Reducing substances | passes test |
| Loss on drying (105 °C) | ≤ 0.5 % |
| Loss on drying (130 °C) | ≤ 1.0 % |
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