What is phthalic anhydride used for?
Phthalic anhydride is widely used worldwide for an extremely broad range of applications spanning from the plastics industry to the synthesis of resins, agricultural fungicides and amines. Its production is currently based on the vapor phase oxidation of o-xylene and naphthalene.
Is phthalic anhydride natural?
Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. It is the anhydride of phthalic acid. Phthalic anhydride is a principal commercial form of phthalic acid. It was the first anhydride of a dicarboxylic acid to be used commercially….Phthalic anhydride.
| Names | |
|---|---|
| Related compounds | Phthalic acid Phthalimide Phthalide |
Which raw material is used for manufacture of phthalic anhydride?
Besides naphthalene and o-xylene, raw materials which can be used for the production of phthalic anhydride are alkylnaph- thalenes [2], anthracene [3], phenanthrene [3], fluorene [4], chrysene, deoalin [5].
Is phthalic anhydride carcinogenic?
EPA has not classified phthalic anhydride for carcinogenicity.
What is the Odour of phthalic acid?
WHITE LUSTROUS CRYSTALS WITH CHARACTERISTIC ODOUR. Dust explosion possible if in powder or granular form, mixed with air. Decomposes on contact with hot water. This produces phthalic acid.
Is phthalic acid saturated or unsaturated?
Phthalic Acid Unsaturated Polyester Resin.
How is phthalic anhydride manufacture?
PAN is produced by catalytic oxidation of either orthoxylene or naphthalene. Naphthalene-based feedstock is made up of vaporized naphthalene and compressed air. It is transferred to the fluidized bed reactor and oxidized in the presence of a catalyst, vanadium pentoxide, at 650 to 725-F (340 to 385-C).
Is phthalic acid organic or inorganic?
phthalic acid, also called 1, 2-benzenedicarboxylic Acid, colourless, crystalline organic compound ordinarily produced and sold in the form of its anhydride.