Disodium hydrogen phosphate dihydrate Ph. Eur., USP, BP endotoxin tested

Supplier: Avantor Performance Materials

Synonyms: Sodium hydrogenphosphate dihydrateSorensen's saltdi-Sodium hydrogen orthophosphate dihydrateSodium phosphate dibasic dihydrateSodium monohydrogen phosphate dihydrate

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VWRB709-1KGEA 293.38 USD
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Disodium hydrogen phosphate dihydrate Ph. Eur., USP, BP endotoxin tested
di-Sodium hydrogen phosphate dihydrate

Tested according to the USP, EP, and BP monographs. Material is of non-animal, non-human origin.


  • Bioprocessing
  • Suitable for use as an Excipient

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

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Specification Test Results

Arsenic ≤ 16 ppm
Chloride ≤ 0.06 %
Bacterial Endotoxins ≤ 2.5 EU/g
Heavy Metals 231 ≤ 20 ppm
Identification (Phosphate) PASS
Identification (Sodium) PASS
Insoluble Substances ≤ 0.4 %
Loss on Drying 731 18.5 – 21.5%
Purity (dried basis) 98.0 - 100.5%
Sulfate ≤0.2 %
Appearance of solution PASS
Arsenic (2.4.2 Method A) ≤4 ppm
Chlorides ≤400 ppm
Heavy Metals (2.4.8) ≤ 20 ppm
Identification A PASS
Identification B PASS
Identification C PASS
Identification D PASS
Iron ≤40 ppm
Loss on Drying (2.2.32) 19.5 – 21.0%
Monosodium Phosphate ≤2.5%
Purity (dried substance) 98.0-101.0%
Reducing Substances PASS
Sulfates ≤0.1%

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