Kaliumdiväteortofosfat, vattenfri ≥99%, white crystalline powder ACS
Leverantör: MP Biomedicals
Synonyms:
Monopotassiumphosphate, prim.-Potassium phosphate, Monopotassium phosphate, Potassium phosphate monobasic, Monobasic Potassium Phosphate, Potassium dihydrogen orthophosphate
Potassium phosphate is a reagent with high buffering capacity. It occurs in several forms: monobasic, dibasic, and tribasic (K3PO4). Most pH neutral potassium phosphate buffer solutions consist of mixtures of the monobasic and dibasic forms to varying degrees, depending on the desired pH.
Potassium Phosphate Monobasic is used as a component for a wide variety of media used in the culture of microorganisms, as a component in phosphate buffered saline (PBS). In addition to helping maintain pH, it supplies essential phosphate.
Soluble in water (0,5 g in 10 ml water), insoluble to slightly soluble in ethanol; insoluble in alcohol.
Observera: Research Use Only (RUO).
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Formel:
KH₂PO₄ MW: 136.09 g/mol Kokpunkt: 100 Smältpunkt: 253 Storage Temperature: Omgivande |
MDL Number:
MFCD00011401 CAS nummer: 7778-77-0 Merck Index: 13,07744 |
Specifikation testresultat
| Identity Test | Passes |
| Assay | ≥99% |
| pH (5% aq soln, 25 °C ) | 4,1 - 4,5 |
| Insoluble Matter | ≤0,01% |
| Loss on Drying (105 °C) | ≤0,2% |
| Chloride (Cl) | ≤0,001% |
| Sulphate (SO₄) | ≤0,003% |
| Heavy Metals (as Pb) | <0,001% |
| Iron (Fe) | ≤0,002% |
| Sodium (Na) | ≤0,005% |
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