1.04874

Potassium hydrogen phthalate

for analysis EMSURE^® Reag. Ph Eur

• Sinonimo/i: Potassium hydrogen phthalate
• Formula empirica (notazione di Hill): C₈H₅KO₄
• Numero CAS: 877-24-7
• Peso molecolare: 204.22
• Numero MDL: MFCD00013070
• Codice UNSPSC: 12352106
• Numero indice EU: 212-889-4
• NACRES: NA.21

Proprietà

• agenzia: reag. Ph. Eur.
• Livello qualitativo: 300
• Nome Commerciale: EMSURE^®
• Saggio: ≥99.5% dry basis (perchloric acid titration)
• Forma fisica: solid
• Potenza: >3200 mg/kg LD₅₀, oral (Rat)
• Impurezze: ≤0.005% In water insoluble matter
• Perdita: ≤0.2% loss on drying, 105°C
• pH: 4.0 (20 °C, 50 g/L in H₂O)
• Punto di fusione: 295-300 °C
• Densità: 1.636 g/cm³
• Densità bulk: 900 kg/m³
• Anioni in tracce: chloride (Cl^-): ≤0.002%; sulfur compounds (as SO₄^2-): ≤0.005%
• Cationi in tracce: Cu: ≤0.0002%; Fe: ≤0.0005%; Na: ≤0.01%; Pb: ≤0.0005%; heavy metals (as Pb): ≤0.0005%
• Temperatura di conservazione: 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; IWZKICVEHNUQTL-UHFFFAOYSA-M

Descrizione

Applicazioni

• 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).

Risultati analitici

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

Note legali

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 387.1 °F - Pensky-Martens closed cup
• Punto d’infiammabilità (°C): 197.3 °C - Pensky-Martens closed cup