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Potassium phthalate monobasic ACS reagent 99.95% 500G

Potassium phthalate monobasic ACS reagent 99.95% 500G

Code: S179922-500G

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Average lead time: 20-07-2026

500G
ACS reagent
crystals
877-24-7
HOOCC6H4COOK
204.22
KHP; potassium biphthalate; potassium acid phthalate

€308.90 ex VAT

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Potassium Phthalate Monobasic is an ACS reagent-grade crystalline compound used as a primary standard in acidimetric titration. It is also suitable for preparing potassium phthalate buffer solutions for pH calibration.

Field Description
Product Name Potassium Phthalate Monobasic
Full Product Name Potassium phthalate monobasic, ACS reagent, acidimetric standard
Linear Formula HOOCC?H?COOK
CAS Number 877-24-7
Molecular Weight 204.22
Grade ACS reagent
Assay 99.95–100.05% dry basis
Form Crystals
Quality Acidimetric standard
Solubility Soluble in water, 93 g/L at 30 °C
pH 4.00–4.02 at 25.0 °C ± 0.2 °C, 0.05 M
Melting Point 295–300 °C, decomposes
Functional Group Carboxylic acid
Key Identifiers EC No. 212-889-4; MDL No. MFCD00013070; PubChem Substance ID 24850834; Beilstein/REAXYS No. 3637128

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