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
产品名称
邻苯二甲酸氢钾, ACS reagent, acidimetric standard
等级
ACS reagent
质量水平
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
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)
2, 4, 6-Trinitrobenzoic acid as a primary standerd in acidimetry.
Smith GF and Wilkins DH.
Analytica Chimica Acta, 8, 209-216 (1953)
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
Randi J Bertelsen et al.
Environmental health perspectives, 121(2), 251-256 (2012-11-21)
High-molecular-weight phthalates in indoor dust have been associated with asthma in children, but few studies have evaluated phthalate biomarkers in association with respiratory outcomes. We explored the association between urinary concentrations of phthalate metabolites and current asthma. In a cross-sectional
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