phthalic anhydride

Introduction

Occupational exposure:

Clinical manifestations

• conjunctivitis
• nasal ulceration & epistaxis
• upper respiratory tract irritation
• bronchitis
• asthma
• dermatitis

Laboratory

• phthalic anhydride Ab in serum
• phthalic anhydride in air

Notes

• prepared from naphthalene by oxidation with a mixture of HgSO4 & CuSO4 in the presence of H2SO4 by passing napthalene & oxygen over a suitable catalyst at 400-500 degrees C.

melting point: 138 degrees C

Industrial use.

More general terms

• anhydride
• aromatic compound

More specific terms

• hexahydrophthalic anhydride

Database

• PubChem: http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=6811