1.04874

Potassium hydrogen phthalate

for analysis EMSURE^® Reag. Ph Eur

• Synonyme(s) : Potassium hydrogen phthalate
• Formule empirique (notation de Hill): C₈H₅KO₄
• Numéro CAS: 877-24-7
• Poids moléculaire : 204.22
• Numéro MDL: MFCD00013070
• Code UNSPSC : 12352106
• Numéro de classement CE : 212-889-4
• Nomenclature NACRES : NA.21

Propriétés

• Agence: reag. Ph. Eur.
• Niveau de qualité: 300
• Gamme de produits: EMSURE^®
• Pureté: ≥99.5% dry basis (perchloric acid titration)
• Forme: solid
• Puissance: >3200 mg/kg LD₅₀, oral (Rat)
• Impuretés: ≤0.005% In water insoluble matter
• Perte: ≤0.2% loss on drying, 105°C
• pH: 4.0 (20 °C, 50 g/L in H₂O)
• Pf: 295-300 °C
• Densité: 1.636 g/cm³
• Masse volumique apparente: 900 kg/m³
• Traces d'anions: chloride (Cl^-): ≤0.002%; sulfur compounds (as SO₄^2-): ≤0.005%
• Traces de cations: Cu: ≤0.0002%; Fe: ≤0.0005%; Na: ≤0.01%; Pb: ≤0.0005%; heavy metals (as Pb): ≤0.0005%
• Température de stockage: 2-30°C
• InChI: 1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
• Clé InChI: IWZKICVEHNUQTL-UHFFFAOYSA-M

Description

Application

• Coulometric method with titratable impurity analysis and mass balance method: This study presents a method to convert acidimetric purity to chemical purity for potassium hydrogen phthalate, which is validated using quantitative nuclear magnetic resonance (qNMR) techniques, enhancing the standards for analytical chemistry (Huang T et al., 2023).


• Triplet states of the nonlinear optical chromophore DCM in single crystals: Investigates the triplet excited states of the nonlinear optical chromophore DCM in potassium hydrogen phthalate single crystals, linking these states to single-molecule dark states, significant for the development of optical materials (Barbon A et al., 2009).

Remarque sur l'analyse

Assay (Perchloric acid titration from dried substance): ≥ 99.5 %
Identity (IR-spectrum): passes test
In water insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.002 %
Sulfur compounds (as SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
Na (Sodium): ≤ 0.01 %
Pb (Lead): ≤ 0.0005 %
Loss on Drying (105°C): ≤ 0.2 %
Corresponds to Reag. Ph Eur

Informations légales

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 387.1 °F - Pensky-Martens closed cup
• Point d'éclair (°C): 197.3 °C - Pensky-Martens closed cup