Phthalic anhydride

Phthalic-anhydride

Phthalic anhydride

Phthalic Anhydride is an organic compound with the chemical formula C8H4O3. It is a white crystalline solid with a strong, pungent odor. Phthalic Anhydride is a key intermediate in the chemical industry and serves as a building block for the synthesis of various important chemicals and plastics.

Property Specification
Chemical Formula C8H4O3
CAS Number 85-44-9
Molecular Weight 148.12 g/mol
Appearance White crystalline solid
Melting Point 131-134°C
Boiling Point 284-285°C
Purity 99.5% min
Phthalic Acid Content 0.1% max
Maleic Anhydride Content 0.5% max
Ash Content 0.01% max
Iron (Fe) 5 ppm max
Color (APHA) 20 max