Tripotassium phosphate
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| Names | |
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| IUPAC name
Tripotassium phosphate
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| Other names
Potassium phosphate, tribasic
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.029.006 |
| E number | E340(iii) (antioxidants, ...) |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| K3PO4 | |
| Molar mass | 212.27 g/mol |
| Appearance | White deliquescent powder |
| Density | 2.564 g/cm3 (17 °C) |
| Melting point | 1,380 °C (2,520 °F; 1,650 K) |
| 90 g/100 mL (20 °C) | |
| Solubility in ethanol | Insoluble |
| Basicity (pKb) | 1.6 |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Irritant |
| NFPA 704 (fire diamond) | |
| Flash point | Non-flammable |
| Safety data sheet (SDS) | MSDS |
| Related compounds | |
Other cations
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Trisodium phosphate Triammonium phosphate Tricalcium phosphate |
Related compounds
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Monopotassium phosphate Dipotassium phosphate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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
- ^ "NutritionData Food Additive Identifier". NutritionData.com.
- ^ 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.