Skip to Content
MilliporeSigma
All Photos(4)

Documents

P5379

Sigma-Aldrich

Potassium phosphate monobasic

ReagentPlus®

Synonym(s):

Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate

Sign Into View Organizational & Contract Pricing
All Photos(4)

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:
24898627
NACRES:
NA.25

Quality Level

200

product line

ReagentPlus®

assay

≥99.0%

form

powder or crystals

pKa (25 °C)

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

mp

252.6 °C (lit.)

solubility

water: 100 mg/mL, clear, colorless

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

Application

Potassium phosphate monobasic has been used:
  • in calibration curve generation in electrical conductivity measurement of plasma-activated tap water (PATW).
  • as a component of dissection solution.
  • as a constituent of phosphate buffered saline.

Legal Information

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

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

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

Visit the Document Library

Customers Also Viewed

Slide 1 of 5

1 of 5

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

Potassium phosphate dibasic trihydrate ReagentPlus®, ≥99.0%

Sigma-Aldrich

P5504

Potassium phosphate dibasic trihydrate

Potassium chloride ReagentPlus®, ≥99.0%

Sigma-Aldrich

P4504

Potassium chloride

Potassium phosphate monobasic BioUltra, for molecular biology, anhydrous, ≥99.5% (T)

Sigma-Aldrich

60218

Potassium phosphate monobasic

Potassium phosphate monobasic meets analytical specification of Ph. Eur., NF, E340, anhydrous, 98-100.5% (calc. to the dried substance)

Sigma-Aldrich

04243

Potassium phosphate monobasic

A Rapid Extraction Method for mammalian cell cultures, suitable for quantitative immunoblotting analysis of proteins, including phosphorylated GCN2 and eIF2alpha
Silva RC, et al.
MethodsX, 5, 75-82 (2018)
Plasma-activation of tap water using DBD for agronomy applications: Identification and quantification of long lifetime chemical species and production/consumption mechanisms
Judee F, et al.
Water Research, 133, 47-59 (2018)
Astrocyte-enriched feeder layers from cryopreserved cells support differentiation of spontaneously active networks of human iPSC-derived neurons
Schutte RJ, et al.
Journal of Neuroscience Methods, 294, 91-101 (2018)
Przemyslaw Nogly et al.
IUCrJ, 2(Pt 2), 168-176 (2015-04-14)
Lipidic cubic phases (LCPs) have emerged as successful matrixes for the crystallization of membrane proteins. Moreover, the viscous LCP also provides a highly effective delivery medium for serial femtosecond crystallography (SFX) at X-ray free-electron lasers (XFELs). Here, the adaptation of
Leo Syrjänen et al.
Frontiers in zoology, 12, 19-19 (2015-08-25)
Carbonic anhydrases (CAs, EC 4.2.1.1) are ubiquitous enzymes that catalyze the reversible hydration reaction of carbon dioxide. CAs are present as six structurally divergent enzyme families: α, β, γ, δ, ζ and η. β-CAs have a wide distribution across different
View All Related Papers

Articles

Enzymatic Assay of Cathepsin B

This procedure applies to all products that have a specification for Cathepsin B activity determined by the liberation of 7-amino-4-methylcoumarin from Z-Arg-Arg 7-amido-4-methylcoumarin.

Enzymatic Assay of Proteinase K with Hemoglobin Substrate

Proteinase K (EC 3.4.21.64) activity can be measured spectrophotometrically using hemoglobin as the substrate. Proteinase K hydrolyzes hemoglobin denatured with urea, and liberates Folin-postive amino acids and peptides. One unit will hydrolyze hemoglobin to produce color equivalent to 1.0 μmol of tyrosine per minute at pH 7.5 at 37 °C (color by Folin & Ciocalteu's Phenol Reagent).

Protocols

Enzymatic Assay of Phytase (EC 3.1.3.8)

Derived from procedure SSPHYT02. Includes template updates to current SOP specifications and incorporation of notes into the procedure.

Enzymatic Assay of Laccase (EC 1.10.3.2)

Laccase (EC 1.10.3.2) is a cuproenzyme that oxidizes various types of phenols and similar aromatic compounds aromatic amines with the reduction of molecular oxygen to water, therefore, is used as a biocatalyst.

Enzymatic Assay of 3α-Hydroxysteroid Dehydrogenase with Androsterone (EC 1.1.1.50)

Enzymatic Assay of 3α-Hydroxysteroid Dehydrogenase with Androsterone (EC 1.1.1.50)

Enzymatic Assay of Plasmin with D-Val-Leu-Lys-p-Nitroanilide Dihydrochloride

Enzymatic Assay of Plasmin with D-Val-Leu-Lys-p-Nitroanilide Dihydrochloride

See All

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