Question

Phthalic anhydride is obtained by the process known as
a. decomposition
b. dehydration
c. sublimation
d. distillation​

Answer 1

Answer:

D ) Distillation

Explanation:

Phthalic anhydride and maleic anhydride are recovered by distillation by a series of switch condensers. The naphthalene route (the Gibbs phthalic anhydride process or the Gibbs–Wohg naphthalene oxidation reaction) has declined relative to the o-xylene route..

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Answer 2

Answer:

Phthalic anhydride is obtained by the process known as b. Dehydration

Explanation:

• The chemical substance with the formula C₆H₄(CO)₂O is phthalic anhydride. It is phthalic acid's anhydride. It is formed by Phthalic acid's dehydration

• The main commercial form of phthalic acid is phthalic anhydride. It was the first dicarboxylic acid anhydride to be utilised commercially.

• This white solid serves as a crucial industrial chemical, particularly in the mass manufacture of plasticizers.

• It is used in production of unsaturated polyester resins (UPR)