Buy Potassium hydrogen phthalate (877-24-7) MF: HOOCC6H4COOK | MW: 204.22. Get High Quality Potassium hydrogen phthalate (877-24-7) from LiChrom.
Potassium hydrogen phthalate, commonly referred to as KHP, is characterized by its white powder form, colorless crystalline structure, and colorless aqueous solution. This compound is the monopotassium salt derived from phthalic acid and exhibits a slightly acidic nature. It is stable in air and remains unaffected by carbon dioxide, which facilitates its accurate measurement. KHP does not decompose during storage and is highly soluble in water. Other designations for this compound include Potassium phthalate monobasic, Phthalic acid monopotassium salt, and Potassium biphthalate. Its chemical formula is C8H5KO4.
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Application :
- Potassium hydrogen phthalate HPLC is used in stoichiometric and instantaneous in reactions.
- It can be used as a buffering agent in combination with HCl and NaOH.
- It is also a useful standard for total organic carbon (TOC) testing.
- It is used as a primary standard for acid- base titrations as well as for calibrating pH meters.
Benefits :
- High purity standard substance
- It is relatively inexpensive
- Easy to dry; neither hygroscopic
- Easy to handle
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