Naphthalene, C10H8, is an aromatic hydrocarbon with two, ortho-con densed, benzene rings. It is first member of the series of condensed-ring aromatic compound. It forms easily sublimable colorless leaflets or monoclinic crystals. It has a characteristic odor in grades of technical quality due in large measure to contain impurities; very pure, sulfur free material has a milder and more pleasant odor. It burns in air with the formation of much soot. Garden first recorded finding it as a solid in distillate from coal tar in 1820. Kidd who isolated the material in purer form from pyrolyzed coal tar gave it the name “Naphthalene” in 1821. E. Erlenmeyer in 1866 showed it to be a hydrocarbon with two benzene nuclei condensed in the ortho position and C. Graebe in 1869 established the accepted structural formula by its oxidation to o-phthalic acid.

Introduction

Properties&uses

Methods of Production

Material Balance

Energy Balance

Design of Equipments

Pollution control&Safety

Cost Estimation&Economics

Plant Location&Layout

Bibliography