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Characteristic
Tripotassium phosphate, also called potassium phosphate tribasic, is a water-soluble salt which has the chemical formula K3PO4.(H2O)x (x = 0, 3, 7, 9) Tripotassium phosphate is a strong base.
Chemical formula: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)
Solubility in water:90 g/100 mL (20 °C)
Solubility in ethanol:Insoluble
Basicity (pKb):1.6
Crystal structure:Primitive orthorhombic
Application
Potassium phosphate is used as a fertilizer and food additive. It serves as a buffering agent to regulate pH. It is also used in optical modulators and for non-linear optics such as second-harmonic generation (SHG). It is involved in the phase-transfer catalyzed preparation of acetylenes from the corresponding vicinal dibromo compounds through double dehydrobromination. It is also useful for the oxidative coupling of thiols to disulfide.
Characteristic
Tripotassium phosphate, also called potassium phosphate tribasic, is a water-soluble salt which has the chemical formula K3PO4.(H2O)x (x = 0, 3, 7, 9) Tripotassium phosphate is a strong base.
Chemical formula: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)
Solubility in water:90 g/100 mL (20 °C)
Solubility in ethanol:Insoluble
Basicity (pKb):1.6
Crystal structure:Primitive orthorhombic
Application
Potassium phosphate is used as a fertilizer and food additive. It serves as a buffering agent to regulate pH. It is also used in optical modulators and for non-linear optics such as second-harmonic generation (SHG). It is involved in the phase-transfer catalyzed preparation of acetylenes from the corresponding vicinal dibromo compounds through double dehydrobromination. It is also useful for the oxidative coupling of thiols to disulfide.
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