Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon (CFC). It is a colorless, faintly ethereal, and sweetish-smelling liquid that boils around room temperature. [5] CFC-11 is a Class 1 ozone-depleting substance which …

例如CFCl3是 a 碳的数量1-1=0，b 氢的数量0+1=1，c 氟的数量=1，所以这个化合物叫CFC-11。 已知数字要写化学式的情况下，先将数字a b c +90，得到一个三位数 d, e 和 f，d 是碳原子数量，e 是氢原子数量，f 是氟原子数量；则：2d + 2 - e - f = 氯原子数量. 所以对于CFC-11，def = 90 + 11 = 101, 碳原子数量 =1，氢原子数量 =0，氟原子数量 =1，氯原子数量2d + 2 - e - f = 2 + 2 - 0 - 1 = 3。 所以CFC-11 的化学式是 CFCl3。

一氟三氯甲烷，又称 氟利昂 -11，分子式CFCl 3。 一氟三氯甲烷在低于23.7°C时为液体，呈无色，易挥发，微有 醚 的臭味。 不可燃，但在高温下可分解产生有害物质。 几乎不溶于水，溶于 乙醇 、 乙醚 和其他有机溶剂中。 毒性比 二氧化碳 和 氯代烃 低，但有报道其浓度在10％以上时，可引起兴奋、痉挛，并最后陷入麻醉状态。 由 四氯化碳 和 氢氟酸 在 五氯化锑 催化下进行反应再经分馏而得。 用作 制冷剂 、气雾剂、灭火剂、干洗剂和 发泡剂 等。 对 臭氧层 有损耗作用，對 …

2021年12月2日 · What is CFC-11? CFC-11 was a widely produced man-made chemical with a variety of applications – predominantly as an aerosol propellant, in the production of insulating foams, as a solvent and as a refrigerant for air conditioners. Other applications included asthma inhalers and tobacco processing.

2021年2月10日 · Emissions of ozone-depleting substances, including trichlorofluoromethane (CFC-11), have decreased since the mid-1980s in response to the Montreal Protocol 1, 2. In recent years, an unexpected...

Five years after an unexpected spike in emissions of the banned ozone-depleting chemical chlorofluorocarbon CFC-11, emissions dropped sharply between 2018 and 2019, new analyses of global air measurements show.

ChemicalBook 为您提供一氟三氯甲烷(CFC-11)的化学性质，熔点，沸点，密度，分子式，分子量，物理性质，毒性，结构式，海关编码等信息，同时您还可以浏览一氟三氯甲烷(CFC-11)产品的价格，供应商，贸易商，生产企业和生产厂家，最后一氟三氯甲烷(CFC-11)的中文 ...

用作中温致冷剂、抽提剂、灭火剂和聚氨酯泡沫塑料的发泡剂。 由四氯化碳和氢氟酸反应制得。 或由甲烷、氯气和氟化氢反应而成。 中文名:一氟三氯甲烷 (CFC-11),英文名:Trichlorofluoromethane (CFC-11),CAS:,MSDS.

2024年6月25日 · This study reports CFC-11 mixing ratios and estimates CFC-11 emissions considering new high-frequency continuous observations from the first regional background station in southeastern China. Contrary to the expectations of declining emissions from banks and effective implementation of the MPA agreement, recent studies reveal an unexpected ...

2019年7月22日 · Trichlorofluoromethane, also known as CFC-11 and Freon 11, is a refrigerant, aerosol propellant, and foam-blowing agent. It is unusual in that its boiling point is at normal ambient temperature and pressure, so it can be handled as a liquid or gas. It is often described as having an “ethereal” (i.e., etherlike) odor.