湿法刻蚀是纯粹的化学反应，它是利用化学试剂，与被刻蚀材料发生化学反应生成可溶性物质或挥发性物质。湿法刻蚀的技能，在古代就得到了很多应用。比如在中世纪的时候，欧洲人会用酸性溶液在金属盔甲上蚀刻雕花。在早期集成电路时代，工程师用强酸强碱来大规模刻出芯片。
Vinegar is made of water and acetic acid (CH3COOH), which is commonly used in the production process for vitamins and antibiotics, and to preserve food. There is typically about 5% acetic acid in ...
Vinegar is made of water and acetic acid (CH3COOH), which is commonly used in the production process for vitamins and antibiotics, and to preserve food. There is typically about 5% acetic acid in ...
After the rehydration, the slices were stained with a solution of 0.5% cresyl violet acetate (# C5042, Sigma) and the staining was further differentiated by washing in solutions with increasing ...
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1 The Engineering and Technical College of Chengdu University of Technology, Leshan, Sichuan, China 2 College of Aviation Engineering, Civil Aviation Flight University of China, Guanghan, Sichuan, ...
一、离子反应常见类型： 1、复分解型离子反应：例：Ag++Cl-=AgCl↓2H++CO32- =CO2↑+H2O 2、置换反应型：例：Zn+2H+=Zn2++H2 ↑ Cl2+2I-=2Cl ...
例如苯的同系物可以使酸性KMnO4溶液褪色.(利用此性质可以鉴别苯和苯的同系物) 1.乙酸(CH3COOH)(1)物理性质：俗名醋酸,无色具有强烈刺激性气味的液体,熔点16.6℃,沸点 117.9℃,易溶于水和乙醇,无水乙酸又称冰醋酸.(2) 化学性质,乙酸的官能团是 ,简写为—COOH,可以在氧 ...
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