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Phthalate monobasique de potassium

Name: Phthalate monobasique de potassium
Brand: SIAL

puriss. p.a., ≥99.5% (T)

Synonyme(s) :

Acide phtalique monopotassium salt, Biphthalate de potassium, Hydrogénophthalate de potassium, KHP

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About This Item

Formule linéaire :

HOOCC₆H₄COOK

Numéro CAS:

877-24-7

Poids moléculaire :

204.22

Numéro Beilstein :

3637128

Numéro CE :

212-889-4

Numéro MDL:

MFCD00013070

Code UNSPSC :

12352302

ID de substance PubChem :

329758904

Nomenclature NACRES :

NA.21

Qualité

puriss. p.a.

Niveau de qualité

200

Pureté

≥99.5% (T)

Forme

solid

pH

Pf

295-300 °C (dec.) (lit.)

Traces d'anions

chloride (Cl^-): ≤20 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

Traces de cations

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

Chaîne SMILES

[K+].OC(=O)c1ccccc1C([O-])=O

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

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Catégories apparentées

Salts

Description générale

Potassium phthalate monobasic (KHP) is the monopotassium salt of pthalic acid. It has been proposed as a certified reference material (CRM) under ISO/IEC 17025 and ISO Guide 34 accreditation. Its spectral shift, multiplicity, solubility and relaxation times in different solvents have been reported.

Application

Potassium phthalate monobasic may be used as a primary standard in acidimetric titration and also to prepare potassium phthalate buffer solution for pH calibration.

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

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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2, 4, 6-Trinitrobenzoic acid as a primary standerd in acidimetry.

Smith GF and Wilkins DH.

Analytica Chimica Acta, 8, 209-216 (1953)

Determination of standard pH values for potassium hydrogen phthalate reference buffer solutions in 10, 20, 50, 64 and 84.2 wt per cent methanol/water mixed solvents at temperatures from 283.15 to 313.15 K.

Mussini T, et al.

Electrochimica Acta, 28(11), 1593-1598 (1983)

Development of an ionic liquid-based dispersive liquid-liquid microextraction method for the determination of nifurtimox and benznidazole in human plasma.

J M Padró et al.

Talanta, 107, 95-102 (2013-04-20)

Dispersive ionic liquid-liquid microextraction combined with liquid chromatography and UV detection was used for the determination of two antichagasic drugs in human plasma: nifurtimox and benznidazole. The effects of experimental parameters on extraction efficiency-the type and volume of ionic liquid

Are baleen whales exposed to the threat of microplastics? A case study of the Mediterranean fin whale (Balaenoptera physalus).

Maria Cristina Fossi et al.

Marine pollution bulletin, 64(11), 2374-2379 (2012-09-12)

Baleen whales are potentially exposed to micro-litter ingestion as a result of their filter-feeding activity. However, the impacts of microplastics on baleen whales are largely unknown. In this case study of the Mediterranean fin whale (Balaenoptera physalus), we explore the

Phthalates in German daycare centers: occurrence in air and dust and the excretion of their metabolites by children (LUPE 3).

H Fromme et al.

Environment international, 61, 64-72 (2013-10-10)

Phthalates have been used for decades in large quantities, leading to the ubiquitous exposure of the population. In an investigation of 63 German daycare centers, indoor air and dust samples were analyzed for the presence of 10 phthalate diesters. Moreover

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