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60356

Sigma-Aldrich

Potassium phosphate dibasic

puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

Synonym(s):
Dipotassium hydrogenphosphate, sec.-Potassium phosphate, Dipotassium phosphate
Linear Formula:
K2HPO4
CAS Number:
Molecular Weight:
174.18
EC Number:
MDL number:
eCl@ss:
38070212
PubChem Substance ID:
NACRES:
NB.24

Quality Level

grade

ACS reagent
puriss. p.a.

assay

≥99.0% (T)

form

powder or crystals

impurities

≤0.001% total nitrogen (N)

loss

≤1.0% loss on drying, 105 °C

pH

8.5-9.6 (25 °C, 50 mg/mL in H2O)

anion traces

chloride (Cl-): ≤30 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤500 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

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

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General description

Potassium phosphate dibasic is a useful biological buffer having a pH in the range of 8.5-9.6. Potassium phosphate is present in various forms: monobasic (KH2PO4), dibasic (KH2PO4), and tribasic (K3PO4). Potassium phosphate buffers are widely employed in equilibrium dialysis, high performance liquid chromatography (HPLC) and affinity capillary electrophoresis studies.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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More Documents

Quotes and Ordering

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
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
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
Dongwon Baek et al.
Plant physiology, 161(1), 362-373 (2012-11-17)
Although a role for microRNA399 (miR399) in plant responses to phosphate (Pi) starvation has been indicated, the regulatory mechanism underlying miR399 gene expression is not clear. Here, we report that AtMYB2 functions as a direct transcriptional activator for miR399 in
Teresa R O'Meara et al.
Nature communications, 6, 6741-6741 (2015-04-01)
Developmental transitions between single-cell yeast and multicellular filaments underpin virulence of diverse fungal pathogens. For the leading human fungal pathogen Candida albicans, filamentation is thought to be required for immune cell escape via induction of an inflammatory programmed cell death.

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