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Key Documents

04248

Sigma-Aldrich

Potassium phosphate dibasic

puriss., ≥99%

Synonym(s):

Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate

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About This Item

Linear Formula:
K2HPO4
CAS Number:
Molecular Weight:
174.18
EC Number:
MDL number:
UNSPSC Code:
12352300
eCl@ss:
38070212
PubChem Substance ID:
Pricing and availability is not currently available.

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

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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

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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
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
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

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