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naphthalene
naphthaline
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The raw materials for today's dyes are mainly aromatic hydrocarbons: benzene, toluene, naphthalene , anthracene, pyrene, and others.
Pyrene can be absorbed through the skin, the respiratory tract, and the gastrointestinal tract, whereas naphthalene is mainly absorbed by inhalation.
In one method, naphthalene is oxidized with vanadium pentoxide to give phthalic anhydride.
Common aromatic compounds other than benzene include toluene, naphthalene , and anthracene, all of which are present in coal tar or creosote.
The 500th report is on ordinary naphthalene , the principle ingredient in mothballs and the familiar odor in millions of closets filled with winter's woolens.
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