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46644 Potassium phosphate, ACS, 98.0% min

CAS Number
7778-53-2
Synonyms
Potassium phosphate, tribasic
Tripotassium phosphate

Stock No. Size Price ($) Quantity Availability
46644-30 250g 45.50
46644-A1 1kg 115.00
46644-A7 5kg 416.00
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Potassium phosphate, ACS, 98.0% min

MDL
MFCD00036295
EINECS
231-907-1

Chemical Properties

Formula
K3PO4
Formula Weight
212.27
Form
Granular
Melting point
1340°
Density
2.564
Storage & Sensitivity
Hygroscopic. Store under Nitrogen. Ambient temperatures.
Solubility
Soluble in water. Insoluble in alcohol.

Applications

Potassium phosphate tribasic is a reagent with a very high buffering capacity. It is widely used in molecular biology, biochemistry, and chromatography, used for the extraction of keratohyalin protein from bovine tissue, to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes. It is used as a food additive for its properties as an emulsifier, foaming agent, and whipping agent.

Notes

Hygroscopic. Store away from oxidizing agent, water/ moisture.

Literature References

L. van den Berg; Dyson Rose. Effect of freezing on the pH and composition of sodium and potassium phosphate solutions: the reciprocal system KH2PO4?Na2HPO4?H2O. Arch. Biochem. Biophys.1959, 81 (2), 319-329.

GHS Hazard and Precautionary Statements

Hazard Statements: H318-H335

Causes serious eye damage. May cause respiratory irritation.

Precautionary Statements: P261-P280i-P305+P351+P338-P304+P340-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,7660
Harmonized Tariff Code
2835.24
TSCA
Yes
RTECS
TC8450000

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