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Potassium phosphate monobasic

Potassium Phosphate, Monobasic, Molecular Biology Grade, CAS No. 7778-77-0. Chemical formula KH₂PO₄, molar mass 136.1.

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Synonym(s):
Potassium phosphate monobasic, KH₂PO₄, Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate
Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
MDL number:

Quality Level

Assay

≥99% (titration)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

white

mp

252.6 °C (lit.)

solubility

water: soluble

density

2.338 g/mL at 25 °C (lit.)

absorption

≤0.01 at 260 nm
≤0.01 at 280 nm

foreign activity

DNases, proteases, RNases, none detected

shipped in

ambient

storage temp.

10-30°C

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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This Item
P5655P537960220
Potassium phosphate monobasic buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%

Sigma-Aldrich

60220

Potassium phosphate monobasic

Essential Grade
form

solid

form

powder

form

powder or crystals

form

crystalline

storage condition

OK to freeze

storage condition

-

storage condition

-

storage condition

-

color

white

color

-

color

-

color

-

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

solubility

water: soluble

solubility

water: 100 mg/mL, clear, colorless

solubility

water: 100 mg/mL, clear, colorless

solubility

water: 0.5 g/10 mL, clear, colorless to light yellow

General description

Buffer having a pH of 4.4-4.7 (absorbance: ≤0.01 at 260 nm and 280 nm).

Warning

Toxicity: Standard Handling (A)

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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