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文件

179922

邻苯二甲酸氢钾

Name: 邻苯二甲酸氢钾
Brand: SIAL

ACS reagent, acidimetric standard

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别名:

KHP, 苯二甲酸氢钾, 邻苯二甲酸单钾盐, 酞酸氢钾

线性分子式:

HOOCC₆H₄COOK

CAS号:

877-24-7

分子量:

204.22

Beilstein:

3637128

EC 号:

212-889-4

MDL编号:

MFCD00013070

PubChem化学物质编号:

24850834

NACRES:

NA.21

等级

ACS reagent

质量水平

200

检测方案

99.95-100.05% dry basis

形式

crystals

质量

acidimetric standard

杂质

≤0.002% S compounds
≤0.003% Cl compounds
≤0.005% insolubles

pH值（酸碱度）

4.00-4.02 (25.0 °C±0.2 °C, 0.05 M)

mp

295-300 °C (dec.) (lit.)

痕量阳离子

Fe: ≤5 ppm
Na: ≤0.005%
heavy metals: ≤5 ppm (by ICP)

SMILES string

[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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应用

邻苯二甲酸氢钾可用作酸量滴定的一级标准品，也可用于制备用于 pH 校准的邻苯二甲酸氢钾缓冲液。

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

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)

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示例

T1503

货号

25G

包装规格/数量

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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

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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

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Hanne Frederiksen et al.

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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

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