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Merck
CN

179922

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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关于此项目

线性分子式:
HOOCC6H4COOK
化学文摘社编号:
877-24-7
分子量:
204.22
NACRES:
NA.21
PubChem Substance ID:
24850834
UNSPSC Code:
12352100
EC Number:
212-889-4
MDL number:
MFCD00013070
Beilstein/REAXYS Number:
3637128
Assay:
99.95-100.05% dry basis
Grade:
ACS reagent
Form:
crystals
Solubility:
water: soluble (93 g/l at 30 °C (86 °F))

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产品名称

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

InChI key

IWZKICVEHNUQTL-UHFFFAOYSA-M

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

SMILES string

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

grade

ACS reagent

assay

99.95-100.05% dry basis

form

crystals

quality

acidimetric standard

Quality Level

200

impurities

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

pH

4.00-4.02 (25.0 °C±0.2 °C, 0.05 M)

mp

295-300 °C (dec.) (lit.)

solubility

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

anion traces

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

cation traces

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

functional group

carboxylic acid

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相关类别

Application

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

flash_point_f

387.1 °F - Pensky-Martens closed cup

flash_point_c

197.3 °C - Pensky-Martens closed cup

ppe

Eyeshields, Gloves, type N95 (US)

存储类别

11 - Combustible Solids

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKDB2308
MKCZ9604
MKCZ5830
MKCZ5831
MKCX4050

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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
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)
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
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