fluorine

简明释义

英[ˈflɔːriːn;ˈflʊəriːn]美[ˈflɔːriːnˌˈflʊriːn]

n. [化学] 氟

英英释义

单词用法

同义词

反义词

例句

1.As a necessary element of animal, fluorine has very important function in production.

氟作为动物体中一种必需的微量元素，在生产上有很重要的作用。

2.The irritation caused by fluorine appears to be less than that caused by chlorine at equal concentrations.

在同样浓度下，氟所引起的刺激性看起来比氯引起的小。

3.This is accomplished by creating a double-layered shell, made of opaque and translucent fluorine-based plastic (ETFE) in a variety of colors.

我们通过采用各种颜色的透明与不透明的ETFE膜来创建了一个双层表皮的壳体。

4.Fluorine contents in grains of Xuzhou epidemic fluorosis area range between 0.

徐州地氟病区几种主要粮食中氟的含量变化在0。

5.Its particular molecular structure involves a lopsided arrangement of fluorine atoms on one side and hydrogen atoms on the other.

其特殊的分子结构在于一侧是氟原子而另一侧是氢原子的不平衡排列。

6.Lead or annealed copper washers are most often used in fluorine and other reactive fluoride service.

铅或退火铜垫圈最经常用于氟和其它活泼氟化物设施。

7.The chemical symbol for fluorine is F.

化学符号为氟的是F。

8.In nature, fluorine is found in minerals such as fluorite.

在自然界中，氟存在于萤石等矿物中。

9.The dentist recommended a toothpaste that contains fluorine to help prevent cavities.

牙医推荐了一种含有氟的牙膏，以帮助预防蛀牙。

10.Industrial applications of fluorine include the production of Teflon.

氟的工业应用包括特氟龙的生产。

11.Exposure to high levels of fluorine can be toxic to humans.

接触高浓度的氟对人类可能是有毒的。

作文

Fluorine is one of the most intriguing elements in the periodic table. As a halogen, it occupies group 17, and its atomic number is 9. The element is represented by the symbol 'F'. One of the most notable characteristics of fluorine (氟) is its extreme reactivity. It is the most electronegative element, meaning it has a strong tendency to attract electrons from other elements. This property makes fluorine (氟) highly reactive, often forming compounds with almost all other elements, including noble gases under certain conditions. The discovery of fluorine (氟) was a significant milestone in chemistry. It was first isolated in 1886 by the French chemist Henri Moissan, who used electrolysis to extract it from potassium fluoride. This achievement earned him the Nobel Prize in Chemistry in 1906. The isolation of fluorine (氟) was challenging due to its reactivity, which made it difficult to handle and study. In nature, fluorine (氟) is not found in its elemental form due to its high reactivity. Instead, it occurs in various minerals such as fluorite and cryolite. These minerals are important sources for industrial applications of fluorine (氟). For instance, fluorine (氟) is used in the production of aluminum, where it acts as a flux to lower the melting point of the ore. Another significant application of fluorine (氟) is in the field of pharmaceuticals. Many drugs contain fluorine (氟) atoms because they can enhance the biological activity of the compounds. The presence of fluorine (氟) can improve the metabolic stability of drugs, making them more effective and longer-lasting in the body. This has led to the development of several important medications that incorporate fluorine (氟), showcasing its vital role in modern medicine. Moreover, fluorine (氟) is also widely used in the production of fluorinated gases, which are utilized in refrigeration and air conditioning systems. These gases have unique properties that make them efficient coolants. However, their environmental impact has raised concerns, leading to efforts to find alternatives that are less harmful to the ozone layer. In addition to its industrial and pharmaceutical uses, fluorine (氟) plays a crucial role in dental health. Fluoride, a compound derived from fluorine (氟), is commonly added to toothpaste and drinking water to help prevent tooth decay. The incorporation of fluorine (氟) in dental care products has significantly reduced the incidence of cavities, demonstrating its beneficial effects when used responsibly. Despite its many advantages, handling fluorine (氟) requires caution due to its toxic and corrosive nature. It can cause severe burns and respiratory issues upon contact or inhalation. Therefore, strict safety protocols must be followed in laboratories and industrial settings where fluorine (氟) is used. In conclusion, fluorine (氟) is a remarkable element with diverse applications ranging from industrial processes to healthcare. Its unique properties, particularly its reactivity and electronegativity, make it an essential component in various fields. Understanding fluorine (氟) and its implications is crucial for harnessing its benefits while minimizing potential risks. As research continues, we may discover even more innovative uses for this fascinating element.

氟是周期表中最引人入胜的元素之一。作为卤素，它位于第17组，原子序数为9。该元素的符号为'F'。氟（氟）的一个显著特征是其极强的反应性。它是电负性最强的元素，这意味着它有很强的倾向从其他元素吸引电子。这一特性使得氟（氟）具有高度的反应性，通常与几乎所有其他元素形成化合物，包括在某些条件下的惰性气体。 氟（氟）的发现是化学领域的重要里程碑。它于1886年首次被法国化学家亨利·莫伊桑分离出来，他使用电解法从氟化钾中提取它。这一成就使他在1906年获得诺贝尔化学奖。由于其反应性，分离氟（氟）是一项挑战，这使得它难以处理和研究。 在自然界中，氟（氟）并不以元素形式存在，因为其高反应性。相反，它以各种矿物形式出现，例如萤石和冰晶石。这些矿物是工业应用中氟（氟）的重要来源。例如，氟（氟）用于铝的生产，作为助熔剂降低矿石的熔点。 氟（氟）的另一个重要应用是在制药领域。许多药物含有氟（氟）原子，因为它们可以增强化合物的生物活性。氟（氟）的存在可以提高药物的代谢稳定性，使其在体内更有效且持续时间更长。这导致了几种重要药物的开发，这些药物包含氟（氟），展示了其在现代医学中的重要作用。 此外，氟（氟）还广泛用于氟化气体的生产，这些气体用于制冷和空调系统。这些气体具有独特的性质，使其成为高效的冷却剂。然而，它们对环境的影响引起了关注，促使人们努力寻找对臭氧层危害较小的替代品。 除了其工业和制药用途外，氟（氟）在牙齿健康中也扮演着至关重要的角色。氟化物，源自氟（氟）的化合物，通常添加到牙膏和饮用水中，以帮助防止蛀牙。将氟（氟）纳入牙齿护理产品显著减少了龋齿的发生，证明了其在负责任使用时的益处。 尽管有许多优点，但由于其毒性和腐蚀性，处理氟（氟）需要谨慎。接触或吸入后可能会导致严重烧伤和呼吸问题。因此，在实验室和工业环境中使用氟（氟）时，必须遵循严格的安全协议。 总之，氟（氟）是一个出色的元素，具有从工业过程到医疗保健等多种应用。其独特的性质，尤其是反应性和电负性，使其成为各个领域的基本组成部分。理解氟（氟）及其影响对于利用其益处同时最小化潜在风险至关重要。随着研究的继续，我们可能会发现更多创新的用途，为这个迷人的元素服务。