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Phthalic Acid is an ambrosial dicarboxylic acid, with blueprint C6H4(CO2H)2. It is an isomer of isophthalic acerbic and terephthalic acid. Although phthalic acerbic is of bashful bartering importance, the carefully accompanying acquired phthalic anhydride is a article actinic produced on a ample scale.
Uses
It is a dibasic acid, with pKa's of 2.89 and 5.51. The monopotassium salt, potassium hydrogen phthalate is a accepted acerbic in analytic chemistry. Typically phthalate esters are able from the broadly accessible phthalic anhydride. Reduction of phthalic acerbic with sodium admixture in the attendance of baptize gives the 1,3-cyclohexadiene derivative.
Phthalic acid is one of three isomers of benzenedicarboxylic acid, the others getting isophthalic acerbic and terephthalic acid. Sometimes the appellation "phthalic acids" is acclimated to accredit to this ancestors of isomers, but in the singular, "phthalic acid", refers alone to the ortho- isomer.
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