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Potassium phosphate, monobasic

Potassium phosphate, monobasic

Synonyms Potassium biphosphate; Potassium acid phosphate; Potassium dihydrogen phosphate; Monopotassium phosphate; Sorensen's potassium phosphate

CAS Number: 7778-77-0 Molecular Formula: KH2PO4 Molecular Weight: 136.09

EC Number: 231-913-4 MDL Number: MFCD00011401

SKU 02191430-CF
$45.55
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Description

Product Description

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.

Application Notes

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.

Usage Statement

Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.

Key Applications

Component of culture media

Specifications
SKU 02191430-CF
Alternate Names Potassium biphosphate; Potassium acid phosphate; Potassium dihydrogen phosphate; Monopotassium phosphate; Sorensen's potassium phosphate
Application Notes 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.
Base Catalog Number 191430
CAS # 7778-77-0
Density 2.338 g/mL at 25 °C(lit.)
EC Number 231-913-4
Format Crystalline
Grade ACS grade, Anhydrous
Hazard Statements H317
Insoluble Matter ≤0.01%
Melting Point 252.6 °C(lit.)
Molecular Formula KH2PO4
Molecular Weight 136.09
Personal Protective Equipment Eyeshields, Gloves, respirator filter
pH 4.1 - 4.5(5% aq soln, 25 °C)
pKa (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) (25 °C)
RTECS Number TC6615500
Solubility Soluble in water (0.5G in 10mL water), Insoluble to slightly soluble in ethanol; insoluble in alcohol.
Usage Statement Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.