邻苯二甲酸氢钾，Potassium hydrogen phthalate [KHP]；ACS reagent, acidimetric standard, 99.95-100.05% dry basis

等级

ACS reagent

质量水平

200

检测方案

99.95-100.05% dry basis

形式

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.)

痕量阳离子

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

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