Cycloalkane - Wikipedia
In organic chemistry, the cycloalkanes (also called naphthenes, but distinct from naphthalene) are the monocyclic saturated hydrocarbons. [1] In other words, a cycloalkane consists only of hydrogen and carbon atoms arranged in a structure containing a single ring (possibly with side chains), and all of the carbon-carbon bonds are single.
Naphthenes - an overview | ScienceDirect Topics
2010年7月1日 · Naphthenes, also known as cycloalkanes, are saturated hydrocarbons that have at least one ring of carbon atoms. They have the general formula C n H 2 n . A common example is cyclohexane (C 6 H 12 ).
Naphthenes Definition and Examples - ThoughtCo
2019年10月7日 · Naphthenes are a class of cyclic aliphatic hydrocarbons obtained from petroleum. Naphthenes have the general formula C n H 2n. These compounds are characterized by having one or more rings of saturated carbon atoms. Naphthenes are an important component of liquid petroleum refinery products.
Naphthenes - an overview | ScienceDirect Topics
Cycloaliphatic hydrocarbons (also called cycloalkanes, alicyclic hydrocarbons, naphthenes) are saturated hydrocarbons containing one or more rings, each of which may have one or more paraffin (alkyl) side chains. Cycloalkanes are alkanes joined in a closed loop to form a ring-shaped molecule, and they are named by using the alkane names above ...
萘 - 维基百科，自由的百科全书
萘 nài （英語： Naphthalene），旧称 艿，俗稱焦油腦，是一种 多环芳香烃。 可从 煤焦油 分离和 石油提煉 製得。 萘为无色或白色有光泽的鳞片状 单斜 结晶，有溫和芳香氣味，粗萘有特殊的煤焦油样臭味； 熔点 80.2℃， 沸点 218℃；难溶于 水，易溶于 有機溶劑 中，如 乙醇 及 乙醚。 能挥发并易昇华，能 水蒸氣蒸馏。 与空气形成 爆炸性混合物； 爆炸极限 0.9％－5.9％（体积）。 在正常情况下，萘比 苯 更易发生典型的 芳香亲电取代反应 （如 卤化 、 磺化 、 硝化）以及 氧化 …
Naphthene series | petroleum | Britannica
Saturated cyclo-compounds are called naphthenes. Naphthenic crudes tend to be poor raw materials for lubricant manufacture, but they are more easily converted into high-quality gasolines than are the paraffin compounds.
Naphthenic Acids: Formation, Role in Emulsion Stability, and …
Naphthenic acids (NAs) are compounds naturally present in most petroleum sources comprised of complex mixtures with a highly variable composition depending on their origin.
Cycloalkanes - Cycloalkane Formula, Properties & Uses with …
What is a Cycloalkane in chemistry? In organic chemistry, the monocyclic saturated hydrocarbons are cycloalkanes (also called naphthenes, but different from naphthalene). Analogous to their usual alkane equivalents, cycloalkanes have the same carbon count: cyclopropane, cyclobutane, cyclopentane, cyclohexane, etc. Is benzene a Cycloalkene?
Cycloalkane - an overview | ScienceDirect Topics
Cycloalkanes (cycloparaffins or naphthenes) consist of carbon atoms joined by single bonds in a ring structure. The most abundant cycloalkanes in oil are the single-ring cyclopentane (C 5 H 10) and cyclohexane (C 6 H 12), and their alkylated (from C 1 to C 14) homologs (alkyl-cyclopentanes and alkyl-cyclohexanes). •
Cycloalkanes (Naphthenes) - SpringerLink
Saturated cyclic hydrocarbons (naphthenes) comprise a most interesting, albeit complicated component of any crude. In effect, these hydrocarbons determine the special place of crude oils among natural organic compounds, as well as among fossil fuels.