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Potassium phosphate dibasic solution

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Formula: K2HPO4
CAS: 7758-11-4

Identification

Structural Formula
Potassium phosphate dibasic solution
CAS:
7758-11-4
EINECS:
231-834-5
Molecular Formula:
K2HPO4
MDL:
MFCD00011383
Synonym:
potassium monohydrogen phosphate ; dipotassium phosphate (k2hpo4) ; dikaliumphosphate ; phosphoric acid,potassium salt (1:2) ; potassium hydrogen phosphate(k2hpo4) ; potassium phosphate dibasic ; potassium dibasic phosphate (k2hpo4) ; potassium monophosphate ; dkp ; dipotassium monohydrogen phosphate ; potassiumbiphosphate ; dipotassium-o-phosphate ; phosphoricacid, dipotassium salt (8ci,9ci) ; dipotassium hydrogen phosphate (k2hpo4) ; potassiumphosphate (k2hpo4) ; dipotassium phosphate ; sec-potassium phosphate ; dipotassium orthophosphate ; mediject p ; dipotassium monophosphate ; potassium biphosphate ; rhodiaphos dkp ; hydrogen dipotassium phosphate ; dipotassium hydrogen phosphate ; isolyte ; dibasic potassium phosphate ; dipotassium hydrogen orthophosphate ; conclyte p ; primary solution red


Description

Potassium phosphate dibasic solution is a convenient stock solution for making phosphate buffers. Widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate occurs in several forms: monobasic (KH2PO4), dibasic (K2HPO4), and tribasic (K3PO4). Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium phosphate buffers are very useful in numerous applications, but with the following limitations; precipitation of Ca2+ and Mg2+, inhibition of restriction enzyme activity, and interference in DNA ligation or bacterial transformation protocols. Has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that potassium phosphate buffers offered improved pH stability as opposed to sodium phosphate buffers. Potassium phosphate has also been used for the extraction of keratohyalin protein from bovine tissue.


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Prices & Availability




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Properties for Potassium phosphate dibasic solution

Molecular Weight:
174.16 g·mol−1
Density:
2,44 g/cm3
Melting point:
340 °C
Boiling point:
158 °C at 760 mmHg
Solubility:
H2O: 1 M at 20 °C, clear, colorless
Physical Description:
white crystalline powder
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Hazard Statements

GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
  • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R22 - Harmful if swallowed
R35 - Causes severe burns
R36 - Irritating to eyes
Safety Codes:
S22 - Do not breathe dust
S24/25 - Avoid contact with skin and eyes
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36 - Wear suitable protective clothing
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
S45 - In case of accident or if you feel unwell seek medical advice immediately (show the label where possible)
Hazard Symbols:
Xi, C, T, F
Hazard symbol T Hazard symbol C Hazard symbol F Hazard symbol Xi
Storage temperature :
Store at RT.
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Alternative Distributors of [Potassium phosphate dibasic solution]

Producers or manufacturers change the product range from time to time. Currently there are no other manufacturers known.
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