Dipotassium hydrogen orthophosphate trihydrate ≥99%, crystals

Supplier: MP Biomedicals

Synonyms: Dipotassium hydrogen phosphate trihydrate, Potassium hydrogen phosphate trihydrate, di-Potassium hydrogen phosphate trihydrate, Potassium phosphate dibasic trihydrate, di-Potassium hydrogen orthophosphate trihydrate

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ICNA02151946.1EA 37.9 GBP
ICNA02151946.1 ICNA02151946.5 ICNA0215194610 ICNA0215194601
Dipotassium hydrogen orthophosphate trihydrate ≥99%, crystals
di-Potassium hydrogen orthophosphate trihydrate

Soluble in water (100 mg/ml) ; Insoluble to slightly soluble in ethanol; insoluble in alcohol.


For phosphate buffers, the pH increases with decreasing temperature. Compared with a buffer at 25 °C, buffers at 4 °C will be 0,08 pH unit higher and a buffer at 37 °C will be 0,025 pH unit lower. The concentration of phosphate also influences pH. ; Typical Buffer Preparation/Formulations: 1 M Potassium Phosphate Monobasic, 1 M Potassium Phosphate Dibasic, 5 M Sodium Chloride

Formula: K₂HPO₄·3H₂O
MW: 228,22 g/mol
Melting Pt: 340 °C
Density: 2,3 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00149926
CAS Number: 16788-57-1
EINECS: 231-834-5
Merck Index: 13,07743

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Specification Test Results

Form Clear Granular Crystals
Storage Store at room temperature (15 to 30 °C)

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