Sodium phosphate dibasic, anhydrous 98.0-100.5% (by acidometric titration), EMPROVE® ESSENTIAL Ph. Eur., BP, USP, JPE, E339, SAFC®
Supplier: EMD MILLIPORE – PCS CA EXCEP
Synonyms:
di-Sodium hydrogen phosphate anhydrous
, Sodium phosphate dibasic
, sec-Sodium phosphate
, Disodium phosphate
, di-Sodium hydrogen orthophosphate
, Sodium hydrogen phosphate
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, USP, JPE, E 339
Conforms to the purity criteria on food additives according to the current European Commission Regulation.
Formula:
Na₂HPO₄ MW: 141.96 g/mol Melting Pt: 250 °C Density: 1.53 g/cm³ (20 °C) |
MDL Number:
MFCD00003496 CAS Number: 7558-79-4 Merck Index: 12,08805 |
Specification Test Results
Assay (calculated on dried substance according to Ph Eur) | 98.0 - 101.0 % |
Assay (calculated on dried substance according to USP) | 98.0 - 100.5 % |
Assay (acidimetric; dried substance) | 99.0 - 101.0 % |
Identity | passes test |
Appearance of solution | passes test |
In water insoluble matter (calculated on dried substance) | ≤ 0.20 % |
Sodium dihydrogen phosphate (NaH₂PO₄) | ≤ 1.7 % |
pH-value (1 %, water) | 9.0 - 9.4 |
Carbonate | passes test |
Chloride (Cl) | ≤ 0.01 % |
Fluoride (F) | ≤ 0.001 % |
Sulfate (SO₄) | ≤ 0.03 % |
Heavy metals (as Pb) | ≤ 0.001 % |
As (Arsenic) | ≤ 0.0001 % |
Cd (Cadmium) | ≤ 0.0001 % |
Fe (Iron) | ≤ 0.002 % |
Hg (Mercury) | ≤ 0.0001 % |
Ni (Nickel)* | ≤ 0.0002 |
Pb (Lead) | ≤ 0.0001 % |
Residual solvents (ICH Q3C) | excluded by production process |
Substances reducing potassium permanganate | passes test |
Loss on drying (130 °C) | ≤ 1.0 % |
Particle size ( |
about 99 % |
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