Skip to Content
Merck
CN

60229

Potassium phosphate monobasic

tested according to Ph. Eur., anhydrous

Synonym(s):

Kalii dihydrogenophosphas, Potassium dihydrogen phosphate, prim.-Potassium phosphate

Sign In to View Organizational & Contract Pricing

Select a Size

About This Item

Linear Formula:
KH2PO4
CAS Number:
7778-77-0
Molecular Weight:
136.09
EC Number:
231-913-4
MDL number:
MFCD00011401
UNSPSC Code:
12161700
PubChem Substance ID:
329758833
NACRES:
NA.25

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

anhydrous

Quality Level

200

Agency

tested according to Ph. Eur.

Assay

98-100.5% dry basis

form

crystalline

loss

<2.0% loss on drying

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

mp

252.6 °C (lit.)

solubility

water: 208 g/L at 20 °C

density

2.338 g/mL at 25 °C (lit.)

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Potassium phosphate monobasic (KH2PO4), also known as monopotassium phosphate(MKP), is a soluble salt. It serves as a source of phosphorus and potassium. KH2PO4 is an essential component of potassium phosphate buffer, which is utilized in aqueous two-phase systems (ATPS) that are often used in the purification of lipases.

Application

Potassium phosphate monobasic buffer has been used as a component of the mobile phase in high-performance liquid chromatography (HPLC).

Biochem/physiol Actions

Potassium phosphate monobasic (MKP) is a commonly used buffering agent in biochemical and biological applications. It is used as a component of the buffer system in electrophoresis for the separation of biomolecules.

Features and Benefits

Assured high quality as it is tested according to both USP/NF and Ph. Eur. standards

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCN5954
BCCM4476
BCCM0152
BCCM0575
BCCL6295

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Effect of buffer, electric field, and separation time on detection of aptamer-ligand complexes for affinity probe capillary electrophoresis
Buchanan DD, et al.
Electrophoresis, 24(9), 1375-1382 (2003)
In vitro studies: inhibition of nevirapine metabolism by nortriptyline in hepatic microsomes
Iris U and Esteban PJ
Bio-protocol, 5(19), e1607-e1607 (2015)
Novel aqueous two-phase systems based on tetrahydrofuran and potassium phosphate buffer for purification of lipase
L Ranyere S, et al.
Process Biochemistry (Oxford, United Kingdom), 50(9), 1459-1467 (2015)
Vibrational spectroscopic studies (FTIR) of KDP, pure and doped with NH4Cl
Sheeba B, et al.
The Malaysian Journal of Analytical Sciences, 1255-1257 (2020)
LC method for the determination of oxcarbazepine in pharmaceutical preparations
Qi ML, et al.
Journal of Pharmaceutical and Biomedical Analysis, 31(1), 57-62 (2003)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service