Naphthalene
Naphthalene is present in coal tar in the amount of about 10%. Naphthalene oil is separated from the tar by distillation, which is further purified by distillation and refining after the removal of phenols. The resulting product is produced in two qualities, technical naphthalene with a naphthalene concentration of over 97% and pure naphthalene with a purity of over 99%. In addition to the production of phthalic anhydride, naphthalene is used for the production of surfactants, pigments, dyes, medications, and other chemicals. Naphthalene is known primarily as a moth killer, well known for destroying clothes. Recently, the importance of naphthalene has grown as a raw material for the production of superplasticizers for concrete. Hydrogenated or partially hydrogenated naphthalene is used as a low-volatile organic solvent.
|
Technical Naphthalene 97% Chemical name: naphthalene |
Refined Naphthalene 99% Chemical name: naphthalene |
