Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

04248

Sigma-Aldrich

Potassium phosphate dibasic

puriss., ≥99%

Synonym(s):

Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
K2HPO4
CAS Number:
7758-11-4
Molecular Weight:
174.18
EC Number:
231-834-5
MDL number:
MFCD00011383
UNSPSC Code:
12352300
eCl@ss:
38070212
PubChem Substance ID:
57646738

grade

puriss.

Assay

≥99%

impurities

≤0.0005% heavy metals (as Pb)
≤0.01% water insolubles

loss

≤1% loss on drying, 130 °C

pH

8.7-9.4 (20 °C, 1%)

anion traces

chloride (Cl-): ≤20 mg/kg
fluoride (F-): ≤10 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤1 mg/kg
Cd: ≤1 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Na: ≤1%
Pb: ≤4 mg/kg

SMILES string

[K+].[K+].OP([O-])([O-])=O

InChI

1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChI key

ZPWVASYFFYYZEW-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

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
SZBB2660V
SZBC3450V
C3450
SZBC1780
SZBB0030V

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

H Einarsson et al.
Applied and environmental microbiology, 61(2), 669-676 (1995-02-01)
In brined shrimp (ca. 3% NaCl), the effects of three different lactic acid bacteria bacteriocins (crude [6.54 x 10(sup10) U of bacteriocin activity {BU}/g] and purified [8.13 x 10(sup23) BU/g] nisin Z, carnocin UI49 [2.32 x 10(sup4) BU/g], and crude
Tessy Theres Baby et al.
Talanta, 80(5), 2016-2022 (2010-02-16)
A new type of amperometric glucose biosensor based on silicon dioxide coated magnetic nanoparticle decorated multiwalled carbon nanotubes (Fe(3)O(4)@SiO(2)/MWNTs) on a glassy carbon electrode (GCE) has been developed. MWNTs have been synthesized by catalytic chemical vapour decomposition (CCVD) of acetylene
John E Schiel et al.
Talanta, 65(2), 495-500 (2008-10-31)
Potassium phosphate buffer is often used in methods such as equilibrium dialysis, high performance liquid chromatography (HPLC), and affinity capillary electrophoresis (ACE) for characterizing the binding of drugs and hormones with proteins or other ligands within the body. In these
Audrey Beaussart et al.
ACS nano, 8(10), 10723-10733 (2014-10-07)
A variety of bacterial pathogens use nanoscale protein fibers called type IV pili to mediate cell adhesion, a primary step leading to infection. Currently, how these nanofibers respond to mechanical stimuli and how this response is used to control adhesion
Miia J Rainio et al.
Comparative biochemistry and physiology. Toxicology & pharmacology : CBP, 167, 24-34 (2014-09-04)
Lead is a highly poisonous metal with a very long half-life, distributing throughout the body in blood and accumulating primarily in bones and kidney. We studied the short and long-term effects of early-life lead exposure on antioxidant defense and phagocytosis
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