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Merck
CN

33325

Sigma-Aldrich

邻苯二甲酸氢钾

puriss. p.a., buffer substance, ≥99.5%

别名:

KHP, 苯二甲酸氢钾, 邻苯二甲酸 单钾盐, 酞酸氢钾

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About This Item

线性分子式:
HOOCC6H4COOK
CAS号:
分子量:
204.22
Beilstein:
3637128
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.21

等级

puriss. p.a.

方案

≥99.5%

表单

solid

缺失

≤0.2% loss on drying, 105 °C

pH值(酸碱度)

4

mp

295-300 °C (dec.) (lit.)

痕量阴离子

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

痕量阳离子

Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES字符串

[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

InChI key

IWZKICVEHNUQTL-UHFFFAOYSA-M

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一般描述

Potassium phthalate monobasic is the monopotassium salt of phthalic 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.

应用

Potassium phthalate monobasic may be used as a buffer to maintain pH = 2.39 and 4.52, during the dispersive ionic liquid-liquid microextraction coupled with liquid chromatography and UV detection of drug (benznidazole and nifurtimox) levels in human plasma. It has been used as internal standard certified reference material (CRM) for the high performance (HP)-quantitative NMR spectroscopic (qNMR) determination of various organic compounds.

储存分类代码

13 - Non Combustible Solids

WGK

WGK 3

闪点(°F)

387.1 °F - Pensky-Martens closed cup

闪点(°C)

197.3 °C - Pensky-Martens closed cup

个人防护装备

Eyeshields, Gloves, type N95 (US)

法规信息

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分析证书(COA)

Lot/Batch Number

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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
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
Hanne Frederiksen et al.
Environmental science & technology, 47(2), 958-967 (2012-12-14)
Urinary phthalate excretion is used as marker of phthalate exposure in epidemiological studies. Here we examine the reliability of urinary phthalate levels in exposure classification by comparing the inter- and intrasubject variation of urinary phthalate metabolite levels. Thirty-three young healthy
Juanjuan Feng et al.
Journal of chromatography. A, 1268, 16-21 (2012-11-07)
Because of the occurrence of ion exchange between high-ionic-strength solution and anions of polymeric ionic liquids (PILs), PILs based solid-phase microextraction (SPME) fibers were rarely used in direct immersion mode to high-salt-added samples. In this work, a novel double-confined PIL
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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