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如何鉴别矿泉水与纯净水
更新时间： 2020-10-13 00:00:00  

鉴别矿泉水与纯净水的步骤：

1、取纯净水、矿泉水各一瓶。

分别倒如玻璃杯中，用通电仪器进行实验。灯泡不亮者为纯净水，灯泡亮者为矿泉水。

2、滴入酚酞试剂，观察颜色变化。

用“ph值对比表”进行判断。呈弱酸性者为纯净水，呈弱碱性为矿泉水。

关键词： 如何 鉴别 矿泉水 纯净水

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