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naphthalene 音標拼音: [n'æfθəl,in] n. 臭樟腦 臭樟腦 naphthalene n 1: a white crystalline strong-smelling hydrocarbon made from coal tar or petroleum and used in organic synthesis and as a fumigant in mothballs Naphthalene \Naph"tha*lene\, n. (Chem.)
A white crystalline aromatic hydrocarbon, {C10H8}, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also {naphthaline}. [1913 Webster] {Naphthalene red} (Chem.), a dyestuff obtained from certain diazo derivatives of naphthylamine, and called also {magdala red}. {Naphthalene yellow} (Chem.), a yellow dyestuff obtained from certain nitro derivatives of naphthol. [1913 Webster]
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