P0662

Potassium phosphate monobasic

ACS reagent, ≥99.0%

• Synonym(s): Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate
• Linear Formula: KH₂PO₄
• CAS Number: 7778-77-0
• Molecular Weight: 136.09
• Número de EC: 231-913-4
• Número MDL: MFCD00011401
• ID de la sustancia en PubChem: 329820048
• NACRES: NA.21

Properties

• grado: ACS reagent
• Nivel de calidad: 200
• ensayo: ≥99.0%
• formulario: powder
• technique(s): tissue culture: suitable
• impurezas: ≤0.01% Insoluble matter
• pérdida: ≤0.2% loss on drying, 105°C
• pH: 4.1-4.5 (25 °C, 5%)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• bp: >450 °C
• mp: 252.6 °C (lit.)
• densidad: 2.338 g/mL at 25 °C (lit.)
• trazas de anión: chloride (Cl^-): ≤0.001%; sulfate (SO₄^2-): ≤0.003%
• trazas de catión: Fe: ≤0.002%; Na: ≤0.005%; heavy metals: ≤0.001% (by ICP)
• SMILES string: [K+].OP(O)([O-])=O
• InChI: 1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• InChI key: GNSKLFRGEWLPPA-UHFFFAOYSA-M

Description

Descripción general

Potassium phosphate monobasic (monopotassium orthophosphate) is a water soluble inorganic salt. Its standard enthalpy of formation has been reported to be -376.1kcalmol^-1. It acts a starting material in the synthesis of potassium metaphosphate.

Aplicación

Potassium phosphate monobasic has been used in the preparation of phosphate buffer and phosphate buffered saline (PBS). It has also been used in the preparation of PEG1000 (poly ethylene glycol)/potassium phosphate aqueous two-phase systems (ATPS).

Otras notas

Go to Redi-Dri^™ Product Listing 795488

Información legal

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Código de clase de almacenamiento: 11 - Combustible Solids
• WGK: WGK 1
• Punto de inflamabilidad F: Not applicable
• Punto de inflamabilidad C: Not applicable