60360
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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线性分子式:
HOOCC6H4COOK
化学文摘社编号:
分子量:
204.22
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
EC Number:
212-889-4
Beilstein/REAXYS Number:
3637128
MDL number:
Assay:
≥99.5% (T)
Form:
solid
Solubility:
water: soluble (93 g/l at 30 °C (86 °F))
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
SMILES string
[K+].OC(=O)c1ccccc1C([O-])=O
grade
puriss. p.a.
assay
≥99.5% (T)
form
solid
Quality Level
pH
4
mp
295-300 °C (dec.) (lit.)
solubility
water: soluble (93 g/l at 30 °C (86 °F))
anion traces
chloride (Cl-): ≤20 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
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
functional group
carboxylic acid
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General description
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。
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。
存储类别
11 - Combustible Solids
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)
2, 4, 6-Trinitrobenzoic acid as a primary standerd in acidimetry.
Smith GF and Wilkins DH.
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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.
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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