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P0662

Sigma-Aldrich

Potassium phosphate monobasic

ACS reagent, ≥99.0%

Synonym(s):
prim.-Potassium phosphate, Monopotassium phosphate, Potassium dihydrogen phosphate
Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

Nível de qualidade

200

grau

ACS reagent

teor

≥99.0%

forma

powder

technique(s)

tissue culture: suitable

Impurezas

≤0.01% Insoluble matter

perda

≤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)

pb

>450 °C

pf

252.6 °C (lit.)

densidade

2.338 g/mL at 25 °C (lit.)

traços de ânion

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

traços de cátion

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

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Descrição geral

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.

Aplicação

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).

Embalagem

25, 500, 6×500 g in poly bottle
12 kg in poly drum
1, 2.5, 4×2.5 kg in poly bottle

Informações legais

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

Código de classe de armazenamento

11 - Combustible Solids

WGK

WGK 1

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Certificate of Analysis

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Certificate of Origin

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