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795488

Sigma-Aldrich

Fosfato de potasio monobasic

anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

Sinónimos:

Dihidrógeno fosfato de potasio, Fosfato de monopatosio, prim.-Fosfato de potasio

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About This Item

Fórmula lineal:
KH2PO4
Número de CAS:
7778-77-0
Peso molecular:
136.09
Número CE:
231-913-4
Número MDL:
MFCD00011401
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
329768487
NACRES:
NA.21

grado

ACS reagent
anhydrous

Nivel de calidad

200

Línea del producto

Redi-Dri™

Análisis

≥99%

formulario

powder or crystals

calidad

free-flowing

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)

mp

252.6 °C (lit.)

densidad

2.338 g/mL at 25 °C (lit.)

trazas de anión

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.003%

trazas de catión

Fe: ≤0.002%
Na: ≤0.005%
heavy metals: ≤0.001% (by ICP)

cadena SMILES

[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

Clave InChI

GNSKLFRGEWLPPA-UHFFFAOYSA-M

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Descripción general

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

Redi-Dri™ technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri™ ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri™ saves you time, energy and money by keeping your salts usable for longer!

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 (polyethylene glycol)/potassium phosphate aqueous two-phase systems (ATPS).

Características y beneficios

  • Increased efficiency – Eliminate time and effort of loosening hardened powders
  • Safety – Avoid risks of using tools of force to break up clumps
  • Economy – Faster preparation and solvation increase productivity and reduce costs
  • Assured quality – Excellent, expert-tested quality with no anti-caking agents
  • Flexible volumes – Available from research amounts to scale-up quantities

Información legal

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

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Choose from one of the most recent versions:

Certificados de análisis (COA)

Lot/Batch Number
0000359756
MKCV3796
MKCV8319
MKCW4893
0000359756

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