The chemical properties of calcium oxide are quite active, so there are many things to pay attention to. Calcium oxide can be used to make bleaching powder, hard water softener, improve soil acidity, disinfect and clarify tap water, and in industries such as construction. Xinxiang Yuanfeng Calcium Industry Co., Ltd. popularizes some common knowledge about the chemical properties of calcium oxide.

1. Calcium oxide can interact with indicators, causing the purple litmus test solution to turn blue and the colorless phenolphthalein test solution to turn red;

2. Reacts with some non-metallic oxides to produce salts and water;

3. Can react with certain acids to produce salts and water;

4. Calcium oxide can react with certain salts to produce another base and another salt.