关于热力学、热量传递和质量传递,以及流体工程的 A-Z 指南
中文 English Русский Português Español Français Deutsch 关于我们 编辑 联系我们 访问 Begell House
View in A-Z Index

Paraffin or alkane is the common name for all saturated, aliphatic hydrocarbons of the chemical formula CnH2n+2. At room temperature and pressure the first four members of the normal series (Methane, Ethane, Propane and Butane) are gases, the next thirteen are liquids, while the rest are solids. The paraffins are the least toxic of all hydrocarbons. The name paraffin is also commonly used for an oily petroleum distillate, which is a mixture of hydrocarbons. It is believed that the perceived chemical inertness of the compounds led to the name paraffin from parum (little) and affinis (related).

浏览次数: 15980 创建日期: 2 February 2011 最后修改日期: 7 February 2011 © Copyright 2010-2021 返回顶部
A-Z 索引 作者/编辑 语义地图 视觉画廊 贡献 Guest