tetrahydrofuran

简明释义

英[ˌtetrəˌhaɪdrəˈfjʊəræn]美[tetrəhaɪdrəˈfjʊərən]

n. [有化] 四氢呋喃；[有化] 氧杂环戊烷

英英释义

单词用法

同义词

反义词

例句

1.New allyl lithium THF complex was prepared conveniently by the reaction of propene with n-butyl lithium in the presence of tetrahydrofuran.

在四氢呋喃存在下，将丙烯和丁基锂直接反应合成了未见文献报道的烯丙基锂四氢呋喃配合物。

2.The target compounds were extracted with polyvinyl chloride materials dissolved in tetrahydrofuran or polyethylene materials dissolved in hot toluene.

采用四氢呋喃溶解聚氯乙烯、热甲苯溶解聚乙烯材料以提取样品中的目标化合物；

3.The effect of factors to the growth of aeromonas THF01 which degraded tetrahydrofuran was studied by liquid culture.

以降解四氢呋喃的气单胞菌THF01为对象，采用液体培养研究了各种理化因素对其生长的影响。

4.The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).

采用一步法合成以4 ，4 '-甲烷二环已基二异氰酸酯（HMDI）、扩链剂1，4 -丁二醇（BDO）为硬段，聚四氢呋喃醚（PTMG）为软段的脂肪族聚氨酯。

5.Two compounds of fruity aroma 2-hydroxy-5-pentyl tetrahydrofuran and 2-hexaoxy -5-pentyl tetrahydrofuran were prepared, and their structures confirmed.

合成了两个具有果香香气的香料：2-羟基-5-正戊基四氢呋喃及2-己氧基-5-正戊基四氢呋喃；证实了其结构。

6.A simple capillary GC method for the determination of residual ethanol, dichloromethane, chloroform, tetrahydrofuran, 1, 4 dioxane, pyridine and toluene in tropisetron citrate was established.

采用毛细管气相色谱法，以外标法测定枸橼酸托烷司琼中乙醇、二氯甲烷、氯仿、四氢呋喃、二烷、吡啶和甲苯的含量，用串联的HP -1 0。

7.The catalysis of big pore strong acid resin for 1,4-butanediol dehydration to tetrahydrofuran is investigated.

考察了大孔强酸性树脂对1，4 丁二醇脱水制四氢呋喃的催化作用。

8.Li2O-B2O3 composite gels were successfully prepared from tri-n-butyl borate and lithium methoxide dissolved in methanol and tetrahydrofuran via sol-gel technique.

以硼酸三正丁酯、甲醇锂为主要原料，甲醇和四氢呋喃为溶剂，利用溶胶-凝胶法通过优化工艺制备了掺锂硼酸盐凝胶。

9.Before disposing of tetrahydrofuran, make sure to follow your local hazardous waste regulations.

在处理四氢呋喃之前，请确保遵循当地的危险废物法规。

10.We chose tetrahydrofuran for the extraction process due to its excellent solubility properties.

我们选择四氢呋喃用于提取过程，因为它具有优良的溶解性能。

11.The solvent used in the reaction was tetrahydrofuran, which is known for its ability to dissolve a wide range of organic compounds.

反应中使用的溶剂是四氢呋喃，它以能够溶解多种有机化合物而闻名。

12.When working with tetrahydrofuran, always ensure proper ventilation due to its volatile nature.

在使用四氢呋喃时，务必确保通风良好，因为它具有挥发性。

13.The polymer was synthesized using tetrahydrofuran as a solvent to facilitate the reaction process.

聚合物的合成使用了四氢呋喃作为溶剂，以促进反应过程。

作文

Tetrahydrofuran, often abbreviated as THF, is a colorless, water-miscible organic liquid with a distinctive ether-like odor. It is widely used as a solvent in various chemical reactions and processes due to its ability to dissolve a wide range of polar and nonpolar compounds. The chemical formula for tetrahydrofuran (四氢呋喃) is C4H8O, indicating that it contains four carbon atoms, eight hydrogen atoms, and one oxygen atom. This simple structure allows tetrahydrofuran to exhibit unique properties that make it an essential compound in both laboratory and industrial settings.One of the key features of tetrahydrofuran is its low boiling point of approximately 66 degrees Celsius, which makes it an ideal solvent for reactions that require mild heating. Its high dielectric constant also contributes to its effectiveness as a solvent for ionic compounds. In the laboratory, tetrahydrofuran is often used in polymer chemistry, particularly in the synthesis of polyethers and other polymers. For instance, the ring-opening polymerization of tetrahydrofuran leads to the formation of polytetramethylene ether glycol (PTMEG), a polymer used in the production of spandex fibers.Moreover, tetrahydrofuran plays a significant role in the pharmaceutical industry. It serves as a solvent for the extraction and purification of various pharmaceutical compounds. Its ability to dissolve both hydrophilic and hydrophobic substances makes it a versatile choice for many drug formulations. Additionally, tetrahydrofuran is sometimes used in the synthesis of active pharmaceutical ingredients (APIs), where it facilitates chemical reactions by providing a suitable medium.Despite its numerous applications, it is essential to handle tetrahydrofuran with care. The compound is flammable and can pose health risks if inhaled or absorbed through the skin. Prolonged exposure may lead to irritation of the eyes, skin, and respiratory tract. Therefore, proper safety precautions, such as using personal protective equipment and working in a well-ventilated area, are crucial when dealing with tetrahydrofuran in any capacity.In conclusion, tetrahydrofuran (四氢呋喃) is a vital solvent and reagent in the fields of chemistry and pharmaceuticals. Its unique properties allow it to dissolve a wide variety of substances, making it indispensable for numerous applications. However, due to its flammable nature and potential health hazards, it is important to handle this compound responsibly. Understanding the characteristics and uses of tetrahydrofuran is essential for anyone involved in chemical research or industrial processes, as it continues to play a pivotal role in advancing scientific knowledge and technology.