White dust plays basketball the alkali will stay at the bottom of the pot after the water is boiled dry

Is the layer of white dust left by the heater harmful to human body
It is alkali. Generally, there is more or less alkali in groundwater. When the water is dry, the alkali will stay at the bottom of the pot. Edible alkali: refers to soda ash (sodium carbonate) (chemical formula Na2CO3) and baking soda (sodium bicarbonate) (chemical formula NaHCO3) different from industrial alkaliIntroduction to the student union of No. 2 middle school in Zhangdian District
Members: lizekun, liuxinyu, xumingze, Baichen, xuxiaoshu, zhaiyunfei. We are a group, a group that leads everyone to learn. We are the Learning Department of the student union of Zhangdian No. 2 middle school. Learning is the foundation of students. The work of our department is to closely follow the word "learning", encourage everyone to learn more, and create a good learning environment for everyone