grade
reference material
Quality Level
assay
>99.5%
quality
certified by BAM
technique(s)
titration: suitable
pH
4
mp
295-300 °C (dec.) (lit.)
application(s)
environmental
format
neat
SMILES string
[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
General description
邻苯二甲酸氢钾(KHP)是严格条件下以最高精度测量产生的容量标准物。标准物的含量采用容量酸碱滴定法测定。其认证值和不确定性度量满足 ISO 指南 35 的要求。
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Application
其可作为标准物质,用于在碱量滴定中标定滴定溶液。
Features and Benefits
- 以坚固玻璃瓶装固体形式提供,确保开封前整个保质期内的稳定性。
- 高纯度材料,可追溯至 NIST SRM
- 高品质材料,可提供精准的滴定测定
- 随附分析证书(CoA)
Analysis Note
精确浓度、有效期以及认证的详细信息请见每个包装内的证书和认证报告。含量和有效期见标签。
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存储类别
11 - Combustible Solids
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)
Acid- Base Dissociation Constants of o-Phthalic Acid in Acetonitrile/Water Mixtures over the (15 to 50)? C Temperature Range and Related Thermodynamic Quantities
Gagliardi GL, et al.
Journal of Chemical and Engineering Data, 55(1), 85-91 (2010)
Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration--A comparison
Recknagel S, et al.
Analytica Chimica Acta, 599(2), 256-263 (2007)
Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration?A comparison
Recknagel S, et al.
Analytica Chimica Acta, 599, 256-263 (2007)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| PH017423-50MG | 04054839953361 |
| 60357-50G | 04061838261045 |