Disodium hydrogen phosphate dihydrate 98.0-101.0% (dry basis), EMPROVE® ESSENTIAL Ph. Eur., BP, USP, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

Synonyms: sec-Sodium phosphate, Sodium monohydrogen phosphate dihydrate, Sodium hydrogenphosphate dihydrate, di-Sodium hydrogen orthophosphate dihydrate, Sodium phosphate dibasic dihydrate, Disodium phosphate, di-Sodium hydrogen phosphate dihydrate, Sorensen's salt

1.06576.5000 1.06576.9029
1.06576.5000EA 642 GBP
1.06576.5000 1.06576.9029
Disodium hydrogen phosphate dihydrate 98.0-101.0% (dry basis), EMPROVE® ESSENTIAL Ph. Eur., BP, USP, SAFC®
di-Sodium hydrogen phosphate dihydrate

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.

Formula: Na₂HPO₄·2H₂O
MW: 177,99 g/mol
Melting Pt: 92,5 °C
Density: 2,1 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00149182
CAS Number: 10028-24-7
EINECS: 231-448-7

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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%
Identity Passes Test
Appearance of Solution Passes Test
In Water Insoluble Matter ≤0.3%
pH-Value (5%; Water) 8.9 - 9.2
Chloride (Cl) ≤0.005%
Sulfate (SO₄) ≤0.02%
Heavy Metals (as Pb) ≤0.001%
As (Arsenic) ≤0.0002%
Fe (Iron) ≤0.001%
Sodium Dihydrogen Phosphate (NaH₂PO₄) ≤1.7%
Residual Solvents (ICH Q3C) Excluded by Manufacturing Process
Substances Reducing Potassium Permanganate (as O) Passes Test
Loss on drying (130 °C) 19.5 - 21.0 %

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