声测管为什么会变色呢？

    原来声测管里面装载着些检测试剂。比如说，二氧化碳声测管里面的白色部分，氧气声测管里面的黑色部分。当被检测的气体与试剂接触后，就会发生化学反应，使得颜色的变化。也可以换句话说，一旦被检测的气体经过声测管，颜色就会发生变化也就说明气体的存在以及它的浓度。

    我们可以进一步的了解下。发生颜色变化的真正缘由是声测管里面的检测试剂与气体接触时，发生的化学反应，从而生成了另外一种不同的物质。就比如，当二氧化碳声测管里面的白色试剂接触到二氧化碳气体时，就会发生变化同时生成了另外一种紫色的物质。当氧气声测管里面的黑色试剂与氧气接触时，就会发生变化同时也会生成了另外一种白色的物质。

我公司专业生产销售声测管 本文由www.yxbohua.com提供  

Why sound tube color?
The original sound inside the test tube carrying some detection reagent. For example, the acoustic detection tube inside the white part of the carbon dioxide, oxygen tube inside the black part. When tested gas after contact with the reagents, chemical reaction occurs, make the color change. Can also, in other words, once tested gas through acoustic detecting tube, the color will change also implies the existence of gas and its concentration.
We can further understanding. Color changes in the inside of the acoustic detection tube was the real reason, when in contact with gas detection reagent chemical reactions, resulting in a different matter. For example, when carbon tube inside white reagents in contact with the carbon dioxide gas, will change produces a different kind of purple material at the same time. When oxygen tube inside black reagents, when in contact with oxygen will change at the same time also produces another white material.