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等级
puriss. p.a.
质量水平
方案
≥99.5% (T)
表单
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
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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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 和 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。
储存分类代码
11 - 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)
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
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
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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