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单词 carbamide
释义

carbamide /ˈkɑ:bəmaid//'kɑrbə,maɪd/

英汉-汉英词典
n. 尿素
词组 | 习惯用语
carbamide peroxide n. 过氧化脲;过氧化胺
英语例句库
  1. The optimal conditions for synthesis of alkali green 4 are reported,including the carbamide and zinc chloride as catalyst,chloranil and bichrome as oxidation agent in the acetic acid medium.
    报道了合成碱性绿-4的最佳条件:在醋酸介质中,尿素、氯化锌为催化剂,四氯苯醌和重铬酸钾为氧化剂;

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原声例句
VOA Special 2013年2月合集

The wax can be softened with mineral oil, glycerin or ear drops. Hydrogen peroxide or carbamide peroxide may also help.

他们说,矿物油,甘油或滴耳剂可以使耳垢软化,过氧化氢或过氧化脲也可以起到帮助。

中文百科

尿素 Urea

(重定向自Carbamide)
Space-filling model of the urea molecule

尿素(Urea) 是由碳、氮、氧和氢组成的有机化合物,又称(与尿同音)。其化学公式为 CON2H4(NH2)2COCN2H4O,分子质量60,国际非专利药品名称为 Carbamide。外观是无色晶体或粉末。它是动物蛋白质代谢后的产物,通常用作植物的氮肥。

尿素在肝合成,是哺乳类动物排出的体内含氮代谢物。这代谢过程称为尿素循环。

尿素是第一种以人工合成无机物质而得到的有机化合物。活力论从此被推翻。

英语百科

Urea 尿素

(重定向自Carbamide)
Space-filling model of the urea molecule
 Urea plant using ammonium carbamate briquettes, Fixed Nitrogen Research Laboratory, ca. 1930

Urea (/juːˈrə/) or carbamide (from the Greek word Ουρία) is an organic compound with the chemical formula CO(NH2)2. The molecule has two —NH2 groups joined by a carbonyl (C=O) functional group.

Urea serves an important role in the metabolism of nitrogen-containing compounds by animals, and is the main nitrogen-containing substance in the urine of mammals. It is a colorless, odorless solid, highly soluble in water, and practically non-toxic (LD50 is 15 g/kg for rats). Dissolved in water, it is neither acidic nor alkaline. The body uses it in many processes, most notably nitrogen excretion. The liver forms it by combining two ammonia molecules (NH3) with a carbon dioxide (CO2) molecule in the urea cycle. Urea is widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.

近义、反义、联想词
近义词
n.
organic compound

联想词
urea尿素;ammonium铵;peroxide过氧化物;ammonia氨,阿摩尼亚;phosphate磷酸盐;whitening变白,白粉;hydroxide氢氧化物;alkali碱;acetic醋的,乙酸的;hydrogen氢;nitrogen氮;
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更新时间:2025/6/17 20:07:56