How did the lime solidify?
The main components of the lime is calcium oxide (CaO), white solid refractory refractory, water absorption, can be used as a desiccant, and water reaction (and release a lot of heat), or absorbed into the moisture in humid air, which mature lime:
Slaked lime: also known as "slaked lime", the main ingredient is calcium hydroxide Ca (OH) 2Lime in a liter of water to dissolve 1.56 grams (20 C), its solution is called "drink and lime water, alkaline, absorption of carbon dioxide in the air and precipitation of calcium carbonate: Ca (OH) 2+ CO2 =CaCO3: +H2O
1) if the lime is solidified, it may be absorbed on the solid. As long as the water is stirred, it can be changed into lime pulp again2) if the slaked lime is solidified, it reacts with the CO2 in the air to produce calcium carbonate solids, which can not be dissolved by mixing with water.3) if the reagent bottle in the laboratory is solidified, it reacts with the CO2 in the air to produce calcium carbonate solids, which dissolve as long as they are added with a small amount of hydrochloric acid.
