Question

How will you differentiate between pthalic and terpthalic acid​

Answer 1

Answer:

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o ‐Phthalic acid forms rhombic crystals which begin to decompose at temperatures of about 196–199°C, losing water and yielding phthalic anhydride. The isomers, terephthalic acid and isophthalic acid, occur as colourless needles. ... Phthalic acid is not sensitizing.

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Answer 2

Answer:

Phthalic acid forms rhombic crystals which begin to decompose at temperatures of about 196–199°C, losing water and yielding phthalic anhydride. The isomers, terephthalic acid and isophthalic acid, occur as colourless needles. ... Phthalic acid is not sensitizing.

Terephthalic acid is a benzenedicarboxylic acid carrying carboxy groups at positions 1 and 4. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and isophthalic acids. It is a conjugate acid of a terephthalate(1-).

Terephthalate belongs to the class of organic compounds known as p-phthalic acid and derivatives. These are compounds containing a benzene ring bearing a carboxylic acid group at ring carbon atoms 1 and 4.