苯 běn （英語： benzene），化學式為C 6 H 6，簡稱 ⌬ 、 ⏣ 或 PhH，旧称 囷 、 焑 、 㷍 、 菕 、 輪質 等 [6]，是 芳香烃，在 常温 为 易燃 、易挥发、氣味刺鼻、 无色 液體。 苯有较强毒性，是 致癌物質。 [7] 苯是最简单的芳香烃，难溶于 水，易溶于 有机溶剂，本身也可作有机溶剂。 苯是 石油化工 基本原料，其产量和生产的技术水平是国家石油化工发展水平的标志。 苯的环系叫 苯环，是最简单的 芳香环。 苯分子去掉一粒氢后的结构叫 苯基，用Ph表示；因此苯也可表示 …

Benzene is a colorless and highly flammable liquid with a sweet smell, and is partially responsible for the aroma of gasoline. It is used primarily as a precursor to the manufacture of chemicals with more complex structures, such as ethylbenzene and cumene, of which billions of kilograms are produced annually.

Benzene is used to make chemicals used in the manufacture of industrial products such as dyes, detergents, explosives, pesticides, synthetic rubber, plastics, and pharmaceuticals. Benzene is found in gasoline and trace amounts are found in cigarette smoke.

5 天之前 · benzene (C6H6), simplest organic, aromatic hydrocarbon and parent compound of numerous important aromatic compounds. Benzene is a colourless liquid with a characteristic odour and is primarily used in the production of polystyrene. It is highly toxic and is a known carcinogen; exposure to it may cause leukemia.

2024年9月6日 · Benzene is a colorless or light-yellow liquid chemical at room temperature. Signs and symptoms of benzene poisoning depend on how you were exposed. Get clean and get medical care if you were exposed.

Benzene is a colorless, flammable liquid with a sweet odor. It evaporates quickly when exposed to air. Benzene is formed from natural processes, such as volcanoes and forest fires, but most people are exposed to benzene through human activities. Benzene is one of the 20 most widely used chemicals in the United States.

Benzene is a cyclic hydrocarbon (chemical formula: C 6 H 6), i.e., each carbon atom in benzene is arranged in a six-membered ring and is bonded to only one hydrogen atom. According to molecular orbital theory, benzene ring involves the formation of three delocalized π – orbitals spanning all six carbon atoms, while the valence bond theory ...

2023年7月3日 · Benzene is the cornerstone of aromatic organic molecules. It has a long and checkered history—much too long to cover here—so the focus will be on the very old and very new.

Experimental data are presented for the growth of vapour bubbles in various superheated liquids, such as carbon tetrachloride, benzene, ethyl alcohol, and methyl alcohol. In a classic example, they used an organic solvent called pazoxyanisole and benzene as a solute. 示例中的观点不代表剑桥词典编辑、剑桥大学出版社和其许可证颁发者的观点。 苯… benceno… benzeno… 需要一个翻译器吗？ 获得快速、免费的翻译！

Benzene - 制法 可信数据 将工业苯用浓硫酸连续洗涤去除杂质噻吩含量合格后，再经水、5%的氢氧化钠溶液洗涤之后，用无水氯化钙干燥，将上清液进行蒸馏即可。