Alkanes Cycloalkanes Alkanes are sometimes referred to as straight chain or acyclic alkanes to dis-tinguish them from cycloalkanes or alicyclic(脂环族的)compounds. The most commonly encountered cycloalkane in organic chemistry is the six-membered ring (cyclohexane
Alkanes & Cycloalkanes Alkanes are sometimes referred to as straight chain or acyclic alkanes to dis-tinguish them from cycloalkanes or alicyclic(脂环族的) compounds. The most commonly encountered cycloalkane in organic chemistry is the six-membered ring (cyclohexane)
Alkanes Cycloalkanes 十十 small three-and four-membered rings are reactive and behave like alkenes. Such cyclic structures are highly strained since it is impossible for the carbon atoms to adopt their preferred tetrahedral shape
Alkanes & Cycloalkanes small three- and four-membered rings are reactive and behave like alkenes. Such cyclic structures are highly strained since it is impossible for the carbon atoms to adopt their preferred tetrahedral shape
东林 Petroleum Refining Naphtha(石脑油) Kerosene (bp95-150°c) (bp:150-230。C) C5-C12 C12C15 Light gasoline (bp:25-95。C) Crude oil C15-C25 Gas oil(柴油) Refinery gas (bp:230-340。C) C1-C4 Residue (重油)
Petroleum Refining Naphtha（石脑油） (bp 95-150 °C) Naphtha Naphtha （石脑油 ） (bp 95 -150 °C) Kerosene (bp: 150-230 °C) Kerosene Kerosene (bp: 150 -230 °C) Crude oil Crude oil Refinery gas Refinery gas Refinery gas Light gasoline (bp: 25-95 °C) Light gasoline Light gasoline (bp: 25 -95 °C) C 5 - C12 C12 - C15 Gas oil（柴油） (bp: 230-340 °C) Gas oil Gas oil （柴油） (bp: 230 -340 °C) C15 - C25 C 1 - C 4 Residue Residue Residue （（重油） 重油）
林 Petroleum Refining Cracking >converts high molecular weight hydrocarbons to more useful,low molecular weight ones Reforming >increases branching of hydrocarbon chains >branched hydrocarbons have better burning characteristics for automobile engines
Petroleum Refining Cracking ¾converts high molecular weight hydrocarbons to more useful, low molecular weight ones Reforming ¾increases branching of hydrocarbon chains ¾branched hydrocarbons have better burning characteristics for automobile engines
B2 Stereostructure Drawing 立体结构 与立体结构表示方法
B2 Stereostructure Drawing 立体结构 与立体结构表示方法