ammonium hydroxide
氢氧化铵
常用释义
英式发音
美式发音
基本释义
- 氢氧化铵：一种弱碱性化合物NH4OH，当氨溶解在水中时形成，只存在于溶液中。
例句
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1·It precipitates insoluble hydroxides from metal salts in solution. (See ammonium hydroxide.)它从金属盐溶液中，沉淀不溶性氢氧化物(见氢氧化铵)。
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2·Preferably the starting material is dissolved in methanol and a stoichiometric excess of ammonium hydroxide is added.原料最好溶解于甲醇并加入过量氢氧化铵。
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3·The samples were prepared by extraction using methanol followed by partitioning between ammonium hydroxide and chloroform.样品经甲醇提取后，再用氨水-氯仿萃取。
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4·More broadly, ammonium hydroxide (see ammonia) and soluble hydroxides of the alkaline earth metals are also called alkalies.更广义的范围包括碱土金属。碱是强碱性的，会使红石蕊试纸变蓝色；
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5·The reaction is then hydrolyzed by pouring it onto a mixture of crushed ice and ammonium chloride, containing some ammonium hydroxide.然后将反应混合物倒进由碎冰和氯化铵组成的含少量氢氧化铵来进行水解。
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6·A new water developable, photosensitive phenolic resin containing quaternary ammonium hydroxide groups and acrylate groups(AQHPR) was synthesized.研究了作为新型水显影阻焊剂组分的含丙烯酸酯基及季铵碱基的酚醛树脂的各种感光条件。
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7·Then the new cage-like vinyl silsesquioxanes(VS) were synthesized by the reaction of vinyl-tetra-coordinate silicon with tetraethyl orthosilicate in the condition of tetramethyl ammonium hydroxide.然后在四甲基氢氧化铵催化下与正硅酸乙酯反应，制得笼状乙烯基倍半硅氧烷；
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8·The extent of coprecipitation of copper with ferric hydroxide in the ammonium chloride-ammonia process has been studied.用氢氧化铵及氯化铵以分离铜与铁，结果很好。
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9·Sulfadiazine-polylactide, a tumor targeting drug carrier, was successfully synthesized by the phase transfer catalysis(PTC)with tetrabutyl ammonium chloride hydroxide as catalyst.采用相转移催化法以四丁基氯化铵为催化剂合成了端基含磺胺嘧啶的聚乳酸，将肿瘤导向基团引入了可生物降解药物载体。
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10·This paper introduces the method of preparing high pure lithium carbonate by double decomposition method with industrial lithium hydroxide and ammonium carbonate as the raws materials.以工业氢氧化锂和分析纯碳酸铵为原料，采用复分解法合成高纯碳酸锂。
同义词
n.
[无化]氢氧化铵