1.05104

Phosphate de potassium dibasique

anhydrous for analysis EMSURE^®

• Synonyme(s) : Phosphate de potassium dibasic, Dipotassium phosphate, Hydrogénophosphate dipotassique, sec.-Phosphate de potassium
• Formule linéaire : K₂HPO₄
• Numéro CAS: 7758-11-4
• Poids moléculaire : 174.18
• Numéro MDL: MFCD00011383
• Code UNSPSC : 12352302
• Numéro de classement CE : 231-834-5
• Nomenclature NACRES : NA.21

Propriétés

• Niveau de qualité: 300
• Gamme de produits: EMSURE^®
• Pureté: ≥99.0% (alkalimetric)
• Forme: solid
• Puissance: 8000 mg/kg LD₅₀, oral (Rat)
• Perte: ≤1% loss on drying, 130 °C
• pH: 9 (20 °C, 10 g/L in H₂O)
• Solubilité: 1600 g/L
• Densité: 2.44 g/cm³ at 20 °C
• Masse volumique apparente: 700‑1000 kg/m³
• Traces d'anions: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.005%
• Traces de cations: Fe: ≤0.0010%; N: ≤0.001%; Na: ≤0.5%; heavy metals (as Pb): ≤0.0005%
• Température de stockage: 15-25°C
• Chaîne SMILES: [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
• Clé InChI: ZPWVASYFFYYZEW-UHFFFAOYSA-L

Description

Application

• Bromination of aromatic compounds by residual bromide in sodium chloride matrix modifier salt during heated headspace GC/MS analysis.: This research investigates the role of potassium phosphate dibasic in the bromination of aromatic compounds, providing insights into its application in GC/MS analysis (Fine et al., 2013).


• Purification of porcine pancreatic lipase by aqueous two-phase systems of polyethylene glycol and potassium phosphate.: The study details the use of potassium phosphate dibasic in the purification of porcine pancreatic lipase using an aqueous two-phase system, demonstrating its utility in biochemical separation processes (Zhou et al., 2013).


• Cloning, purification, crystallization and preliminary X-ray crystallographic analysis of a cyclophilin A-like protein from Piriformospora indica.: This article discusses the use of potassium phosphate dibasic in the crystallization process of a cyclophilin A-like protein, contributing to structural biology research (Bhatt et al., 2012).


• A validated enantioselective HPLC assay of dexibuprofen in dexibuprofen tablet formulations.: Potassium phosphate dibasic is utilized in the development of an enantioselective HPLC assay for dexibuprofen, enhancing pharmaceutical analysis techniques (Awad et al., 2012).


• Monitoring of phenylurea and propanil herbicides in river water by solid-phase-extraction high performance liquid chromatography with photoinduced-fluorimetric detection.: The study employs potassium phosphate dibasic in the analysis of herbicides in river water, demonstrating its application in environmental monitoring and water quality assessment (de la Peña et al., 2003).

Remarque sur l'analyse

Dosage (alcalimétrie) : ≥ 99,0 %
pH (5 % eau) : 8,7 - 9,3
Chlorure (Cl) : ≤ 0,003 %
Sulfate (SO₄) : ≤ 0,005 %
Azote total (N) : ≤ 0,001 %
Métaux lourds (exprimé en Pb) : ≤ 0,0005 %
Fe (Fer) : ≤ 0,0010 %
Na (sodium) : ≤ 0,5 %
Perte au séchage (130 °C) : ≤ 1,0 %

Informations légales

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

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable