Dezincification layer is formed on brass during corrosion or stress corrosion cracking (SCC) in ammonia solution, and an additive stress is induced in the same time.

黄铜表面在氨水中腐蚀或应力腐蚀时形成脱锌层，由此产生一个附加拉应力。

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Method:Thin layer scan used benzene-acetone-ethel acetate-strong ammonia solution(2:3:4:0.2) as a dose, diluted iodized bismuth potassium solution Hin color agent for;

方法：采用了薄层扫描法，以苯-丙酮-醋酸乙酯-浓氨试液（2∶3∶4∶0.2）为展开剂，稀碘化铋钾试液为显色剂；

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In the second part, in order to remove CO2 thoroughly, the diluent ammonia solution was sprayed from the top of the absorption column, fully mixing with the artificial flue gases from the bottom.

第二部分中，为达到充分脱除CO2的目标，我们将已配好设定浓度的稀氨水从吸收塔顶部喷淋，与塔底上升的人工烟气充分混合。

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The first test they carried out was one used by most government authorities, which involves swabbing an earring with a solution containing ammonia and dimethylglyocime.

BBC: Earring

Injected into the exhaust stream, the solution's ammonia reacts in the de-NOx catalyzer to form nitrogen and water vapor.

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