877-24-7 Basic information More..
Product Name:Potassium hydrogen phthalate
Synonyms:Potassium hydrogen phthalate, reagent ACS, acidimetric standard;POTASSIUM ACID PHTHALATE BIO-REFINED;potassium hydrogen phthalate, primary standard, acs;POTASSIUMBIPHTHALATE,BIOTECHGRADE;POTASSIUMBIPHTHALATE,CRYSTAL,REAGENTSPECIAL,ACS;POTASSIUMBIPHTHALATE,ULTRAPURE;SODIUM AMYL XANTHTATE;POTASSIUM ACID PHTHALATE PRIMARY STANDARD (ACS)
CAS:877-24-7
MF:C8H5KO4
MW:204.22
EINECS:212-889-4
Mol File:877-24-7.mol
877-24-7

Use

Crystallise it first from a dilute aqueous solution of K2CO3, then H2O (3mL/g) between 100o and 0o. Before being used as a standard in volumetric analysis, analytical grade potassium hydrogen phthalate should be dried at 120o for 2hours, then allowed to cool in a desiccator. [Beilstein 9 IV 3169.]

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