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如何制取二氧化氮
更新时间: 2020-09-16 00:00:00  

利用浓硝酸和铜共热制取二氧化氮:

反应方程式:1摩尔铜加4摩尔浓硝酸等于1摩尔硝酸铜加2摩尔水加2摩尔二氧化氮气体,条件为加热;

反应物状态:固液常温;

水溶性:和水反应;

颜色:红棕色;

气味:有毒的刺激性气味;

收集方法:向上排空气法;

排空气验满方法:观察颜色;湿润的淀粉碘化钾试纸,试纸变蓝;

可选用的干燥剂:无水硫酸铜,碱石灰,无水氯化钙,五氧化二磷;

注意事项:必须在通风橱中操作,尾气用碱吸收,以免污染大气。

关键词: 如何 制取 氧化

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