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Merck
CN

60360

Sigma-Aldrich

邻苯二甲酸氢钾

puriss. p.a., ≥99.5% (T)

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:
12352302
PubChem化学物质编号:
NACRES:
NA.21

等级

puriss. p.a.

质量水平

检测方案

≥99.5% (T)

形式

solid

pH值(酸碱度)

4

mp

295-300 °C (dec.) (lit.)

痕量阴离子

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

痕量阳离子

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

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

邻苯二甲酸氢钾 (KHP) 是邻苯二甲酸的单钾盐。根据 ISO/IEC 17025 ISO Guide 34 认证,拟定将其作为有证标准物质 (CRM)。已报道了其在不同溶剂中的光谱移动、多重性、溶解性和弛豫时间。

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。

WGK

WGK 1

闪点(°F)

387.1 °F

闪点(°C)

197.3 °C

个人防护装备

Eyeshields, Gloves, type N95 (US)


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