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Merck
CN

179922

Sigma-Aldrich

邻苯二甲酸氢钾

ACS reagent grade, 99.95-100.05% dry basis, crystals, acidimetric standard

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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线性分子式:
HOOCC6H4COOK
化学文摘社编号:
877-24-7
分子量:
204.22
Beilstein:
3637128
EC 号:
212-889-4
MDL编号:
MFCD00013070
UNSPSC代码:
12352100
PubChem化学物质编号:
24850834
NACRES:
NA.21

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产品名称

邻苯二甲酸氢钾, ACS reagent, acidimetric standard

等级

ACS reagent

质量水平

200

方案

99.95-100.05% dry basis

表单

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.)

溶解性

water: soluble (93 g/l at 30 °C (86 °F))

痕量阴离子

chlorine and bromine (as Cl-): ≤0.003%
sulfur compounds (as SO42-): ≤0.002%

痕量阳离子

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

官能团

carboxylic acid

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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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)

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCZ5830
MKCZ5831
MKCX4050
0000370041
0000325000

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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)
J M Padró et al.
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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
Martha M Téllez-Rojo et al.
The Science of the total environment, 461-462, 386-390 (2013-06-12)
Previous studies suggest that prenatal phthalate exposure affects neurodevelopment and behavior during the first years of life. To evaluate the effect of maternal urinary concentrations of phthalate metabolites during pregnancy on mental and psychomotor development in children 24-36 months of
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