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氢氧化钾不能用磨口玻璃塞的原因!

发布来源:http://www.jinhao360.com    更新时间:2020-03-16 点击数:

在化工行业中,有很多不同产品在储存方式上的注意事项,因为它们有不同的特点,储存环境要求也不同,所以在选择储存容器时要格外小心。氢氧化钾是一种强碱性化学物质,其溶液通常装在玻璃瓶中,但软木塞不需要用玻璃制成。那么,它不能与磨砂玻璃插头一起使用的原因是什么呢?分析如下。

In the chemical industry, there are many precautions for different products in the storage mode, because they have different characteristics and storage environment requirements, so you should be very careful when selecting storage containers. Potassium hydroxide is a highly alkaline chemical whose solution is usually in a glass bottle, but corks do not need to be made of glass. So, what's the reason why it can't be used with frosted glass plug? The analysis is as follows.
玻璃瓶和磨砂玻璃塞的成分是一样的,KOH是强碱,玻璃的成分有SiO2, SiO2和KOH反应会生成K2SiO3。但是反应很缓慢。玻璃瓶的内部很光滑,反应很缓慢,基本反应不会是怎样的,而且由于磨砂瓶口的粗糙,会使氢氧化钾溶液与玻璃接触面积增大,使反应加快。生成K2SiO3后,瓶子会粘在嘴上,无法打开。所以要用橡皮塞换,另外:即使是磨砂口,反应也很慢,也要1、2个月不开才能贴。但是没有人总是用氢氧化钾溶液,所以附着的概率比较大,所以我们只好用橡皮塞。
氢氧化钾
The composition of glass bottle and ground glass plug is the same. KOH is a strong alkali. The composition of glass is SiO2. The reaction of SiO2 and KOH will produce k2SiO3. But the response was slow. The inner part of the glass bottle is very smooth and the reaction is very slow. The basic reaction will not be how it is. Moreover, due to the rough mouth of the frosted bottle, the contact area between the potassium hydroxide solution and the glass will be increased and the reaction will be accelerated. After k2SiO3 is generated, the bottle will stick to the mouth and cannot be opened. So we need to replace it with a rubber stopper. In addition, even if it is a frosted mouth, the reaction is very slow, and it can only be pasted after 1 or 2 months. But no one always uses potassium hydroxide solution, so the probability of adhesion is relatively high, so we have to use rubber stoppers.
以上就是氢氧化钾不能和磨砂玻璃塞一起使用的原因,也是为什么磨砂玻璃塞需要用橡胶代替的原因。我希望你能对它有一些了解,以便将来为它选择合适的瓶塞。强碱不仅对储存容器和瓶塞的小细节敏感,而且对许多我们需要了解的其他东西也很敏感。
That's why potassium hydroxide can't be used with ground glass plugs, and why ground glass plugs need to be replaced by rubber. I hope you know something about it so that you can choose the right cork for it in the future. Strong bases are sensitive not only to small details of storage containers and stoppers, but also to many other things we need to know.

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