POTASSIUM HYDROGEN PHTHALATE, 99.95-100. 500 G

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POTASSIUM HYDROGEN PHTHALATE, 99.95-100. 500 G

Brands: SIGMA-ALDRICH

Rp 2.268.000

Price does not include taxes

Potassium phthalate monobasic may be used as a primary standard in acidimetric titration[1] and also to prepare potassium phthalate buffer solution for pH calibration.

SKU: 179922-500G
Categories: Reagent Chemical
Tags: REAGENT CHEMICAL, SIGMA-ALDRICH
Availability: In stock

Description

Product Name

Potassium phthalate monobasic, ACS reagent, acidimetric standard

grade

ACS reagent

Quality Level

Assay

99.95-100.05% dry basis

form

crystals

quality

acidimetric standard

impurities

≤0.002% S compounds
≤0.003% Cl compounds
≤0.005% insolubles

pH

4.00-4.02 (25.0 °C±0.2 °C, 0.05 M)

mp

295-300 °C (dec.) (lit.)

solubility

water: soluble (93 g/l at 30 °C (86 °F))