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60356

Phosphate de potassium dibasic

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

Synonyme(s) :

Dipotassium phosphate, Hydrogénophosphate dipotassique, sec.-Phosphate de potassium

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A propos de cet article

Formule linéaire :
K2HPO4
Numéro CAS:
7758-11-4
Poids moléculaire :
174.18
PubChem Substance ID:
329758898
eCl@ss:
38070212
UNSPSC Code:
12352302
NACRES:
NB.24
EC Number:
231-834-5
MDL number:
MFCD00011383
Assay:
≥99.0% (T)
Form:
powder or crystals
Solubility:
water: soluble (completely)
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Quality Level

300

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)

solubility

water: soluble (completely)

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

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.

Application


  • beta-lactoglobulin stabilized nanemulsions--Formulation and process factors affecting droplet size and nanoemulsion stability.: This study investigates the impact of formulation and process parameters on the stability and size of beta-lactoglobulin stabilized nanemulsions, potentially involving potassium phosphate dibasic in the formulation process (Ali et al., 2016).

  • Correlation of characteristics of gel extrusion module (GEM) tablet formulation and drug dissolution rate.: Examines how the characteristics of gel extrusion in tablet formulations influence drug dissolution rates, relevant for chemists looking into dissolution behavior and possibly involving potassium phosphate dibasic (Juang and Storey, 2003).

  • High-performance liquid chromatographic determination of phenylureas by photochemically-induced fluorescence detection.: Discusses a method for detecting phenylureas using high-performance liquid chromatography, which could involve potassium phosphate dibasic as a component of the mobile phase or sample preparation (Munoz de la Pena et al., 2002).

  • Assay and purity analysis of diatrizoate sodium in drug product by LC.: This research details a method for assaying and analyzing the purity of diatrizoate sodium, where potassium phosphate dibasic could be part of the chromatographic system (Chellquist et al., 1997).

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13 - Non Combustible Solids

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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
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Numéro d'article de commerce international

RéférenceGTIN
60356-1KG04061835563371