以往我在做二氧化碳与澄清石灰水实验时,澄清石灰水的制取是采用将氢氧化钙粉末溶解在水中,然后用滤纸过滤而得到澄清的氢氧化钙溶液的方法,然而这样做的结果却是石灰水变混浊的现象并不明显。我分析原因不外乎两个:一、二氧化碳量不够;二、溶液中氢氧化钙量不够。后来通过实验 In the past when I was experimenting with carbon dioxide and clarifying lime water, clarification of lime water was made by dissolving calcium hydroxide powder in water and filtering it with filter paper to obtain a clear calcium hydroxide solution. However, Lime water is cloudy phenomenon is not obvious. I analyze nothing more than two reasons: First, the amount of carbon dioxide is not enough; Second, the amount of calcium hydroxide solution is not enough. Later through the experiment