Tripotassium phosphate

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Tripotassium phosphate
Tripotassium phosphate.png
Identifiers
CAS number7778-53-2 YesY
PubChem62657
ChemSpider56408 YesY
Jmol-3D imagesImage 1
Properties
Molecular formulaK3PO4
Molar mass212.27 g/mol
AppearanceWhite deliquescent powder
Density2.564 g/cm3 (17 °C)
Melting point1,380 °C (2,520 °F; 1,650 K)
Solubility in water90 g/100 mL (20 °C)
Solubility in ethanolInsoluble
Basicity (pKb)1.6
Hazards
MSDSMSDS
EU IndexNot listed
R-phrasesR36-R38
S-phrasesS26-S36
Main hazardsIrritant
NFPA 704
Flash pointNon-flammable
Related compounds
Other cationsTrisodium phosphate
Triammonium phosphate
Tricalcium phosphate
Related compoundsMonopotassium phosphate
Dipotassium phosphate
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references
 
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Tripotassium phosphate
Tripotassium phosphate.png
Identifiers
CAS number7778-53-2 YesY
PubChem62657
ChemSpider56408 YesY
Jmol-3D imagesImage 1
Properties
Molecular formulaK3PO4
Molar mass212.27 g/mol
AppearanceWhite deliquescent powder
Density2.564 g/cm3 (17 °C)
Melting point1,380 °C (2,520 °F; 1,650 K)
Solubility in water90 g/100 mL (20 °C)
Solubility in ethanolInsoluble
Basicity (pKb)1.6
Hazards
MSDSMSDS
EU IndexNot listed
R-phrasesR36-R38
S-phrasesS26-S36
Main hazardsIrritant
NFPA 704
Flash pointNon-flammable
Related compounds
Other cationsTrisodium phosphate
Triammonium phosphate
Tricalcium phosphate
Related compoundsMonopotassium phosphate
Dipotassium phosphate
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references

Tripotassium phosphate is a water-soluble ionic salt which has the chemical formula K3PO4. It is used as a food additive for its properties as an emulsifier, foaming agent, and whipping agent.[1] In combination with fatty acids, it is a potential antimicrobial agent in poultry processing.[2] As a fertilizer, its proportions of N, P2O5, and K2O are 0-33-67.

References[edit]

  1. ^ "NutritionData Food Additive Identifier". NutritionData.com. 
  2. ^ Hinton, Arthur; Ingram, Kimberly D. (July 2005). "Microbicidal Activity of Tripotassium Phosphate and Fatty Acids toward Spoilage and Pathogenic Bacteria Associated with Poultry". Journal of Food Protection (7): 1336–1534.