Potassium hydrogen phthalate, often called simply KHP, is an acidic salt compound. It forms white powder, colorless crystals, a colorless solution, and an ionic solid that is the monopotassium salt of phthalic acid.

Potassium hydrogen phthalate: Does not have an individual approval but may be used under an appropriate group standard

Potassium hydrogen phthalate, often called simply KHP, is a white or colorless, ionic solid that is the monopotassium salt of phthalic acid. The hydrogen is slightly acidic, and it is often used as a primary standard for acid-base titrations because it is solid and air-stable, making

Potassium hydrogen phthalate, certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.00₅ (25°C) Certipur ® Expand View Pricing

Feb 28, 2017 · This monograph for Potassium Hydrogen Phthalate, Acidimetric Standard provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), aqueous solubility, and density.

It consists of highly purified potassium hydrogen phthalate (KHP), KHC 8 H 4 O 4. Its certified value is calculated as the mass fraction of total acid (replaceable H +) expressed as KHP. Its certified value is based on the results of coulometric assays of ground and dried material. The assay value for this material was obtained by automated ...

Potassium Hydrogen Phthalate (KHP) is a classic primary standard substance in that it is readily available in high purity; is relatively inexpensive; is easy to dry; is neither hygroscopic, oxidized by air, nor affected by Carbon Dioxide (thus making it easy to weigh out); does not undergo decomposition during storage; has a relatively high ...

Jul 8, 2023 · Potassium hydrogen phthalate or potassium biphthalate, often called simply KHP, is an acidic salt of phthalic acid. KHP has the chemical formula C8H5KO4. Potassium hydrogen phthalate is neutralized completely with potassium hydroxide or carbonate to …

This monograph for Potassium Hydrogen Phthalate, Acidimetric Standard provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), aqueous

Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters and for the preparation of volumetric alkali solutions. It acts as buffer in pH determination.