Tripotassium phosphate

Tripotassium phosphate
	IUPAC name Tripotassium phosphate
Other names Potassium phosphate, tribasic
Identifiers
CAS number	7778-53-2 Y
PubChem	62657
ChemSpider	56408 Y
Jmol-3D images	{{#if:[K+].[K+].[K+].[O-]P([O-])([O-])=O|Image 1
SMILES [K+].[K+].[K+].[O-]P([O-])([O-])=O
InChI InChI=1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3 Y Key: LWIHDJKSTIGBAC-UHFFFAOYSA-K Y
Properties
Molecular formula	K3PO4
Molar mass	212.27 g/mol
Appearance	white powder deliquescent
Density	2.564 g/cm3 (17 °C)
Melting point	1380 °C
Solubility in water	90 g/100 mL (20 °C)
Solubility	insoluble in alcohol
Basicity (pKb)	1.6
Hazards
MSDS	"http://hazard.com/msds/mf/baker/baker/files/p6060.htm"
EU Index	Not listed
R-phrases	R36, R38
S-phrases	S26, S36
Main hazards	Irritant
NFPA 704	0 2 0
Flash point	Non-flammable
Related compounds
Other cations	Trisodium phosphate Triammonium phosphate Tricalcium phosphate
Related compounds	Monopotassium phosphate Dipotassium phosphate
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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

1. ↑ NutritionData Food Additive Identifier – NutritionData.com
2. ↑ IngentaConnect Microbicidal Activity of Tripotassium Phosphate and Fatty Acids t

• NutritionData Food Additive Identifier
• Microbicidal Activity of Tripotassium Phosphate and Fatty Acids toward Spoilage and Pathogenic Bacteria Associated with Poultry Journal of Food Protection, Volume 68, Number 7, July 2005 , pp. 1462–1466(5)