Disodium hydrogen phosphate heptahydrate ≥98%, white crystalline powder ACS

Supplier: MP BIOMEDICALS (FKA ICN BIOMED

Synonyms: Sodium phosphate dibasic heptahydrateSodium monohydrogen phosphate heptahydrateDisodium hydrogenorthophosphate 7-hydrateDisodium hydrogenorthophosphate heptahydrateSodium phosphate dibasic 7-hydrateDisodium phosphate (heptahydrate)di-Sodium hydrogen phosphate 7-hydrateSodium monohydrogen phosphate 7-hydrateSodium hydrogen phosphate heptahydrate

0219144101 0219144105 02191441.5
IC191441.5EA 104.16 USD
IC191441.5 IC19144101 IC19144105
Disodium hydrogen phosphate heptahydrate ≥98%, white crystalline powder ACS
di-Sodium hydrogen phosphate heptahydrate

Sodium phosphate dibasic heptahydrate is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. Sodium phosphate dibasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.


Sodium phosphate dibasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.


Sodium phosphate dibasic heptahydrate is use in many applications such as sequestrant, emulsifier and buffer in foods. As mordant in dyeing for weighting silk, in tanning. In manufacturing of enamels, ceramics, detergents; as fireproofing agent in soldering and brazing instead of borax; as reagent and buffer in analytical chemistry, cathartic, laxative.


Soluble in water, but more soluble in hot water; insoluble in alcohol, ethanol.

Formula: HNa₂O₄P·7H₂O
MW: 268.07 g/mol
Storage Temperature: Ambient
MDL Number: MFCD00149180
CAS Number: 7782-85-6

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Specification Test Results

Purity ≥98%
pH (5% aq soln) 8.7 - 9.3
Insoluble Matter ≤0,005%
Heavy Metals ≤0,001%
Chloride ≤0,001%
Sulphate (SO4) ≤0,005%
Iron (Fe) ≤0,001%

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