Gas jar, with cover 集氣瓶連蓀

$40.00
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Category:

With base and ground top flange, glass, 50 mm x 200 mm (diameter x height),
with circular glass cover, ground one side, 75 mm diameter

描述

使用方法:

氣體收集通常采用排水集氣法兩種,采用排水集氣法爲多。如在制取氫氣時,與酒精燈、試管、水槽、玻璃管等儀器配套使用。使用時先將這些儀器洗淨,然後在壹只大試管中裝入純淨的氯酸鉀和適量純淨的氧化錳作人,催化劑使之混合,在試管管品用已打好洞的橡膠塞塞緊,用壹根玻璃管通入集氣瓶內,水槽中裝滿水,將集氣瓶倒置于水槽中,然後按照高度將試管固定好位置,用酒精燈在試管的底部加熱(加熱到不再有氧氣放出時爲止),這時産生的氧氣通過玻璃管收集于集氣瓶中,再用毛玻璃蓋蓋好,取出正放即可待用。

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