Xinhua lime - Names and Identifiers
Xinhua lime - Physico-chemical Properties
| Physical and Chemical Properties | White powder is a mixture of calcium hydroxide and magnesium oxide. It dissolves in acid and emits a lot of heat. The aqueous solution is weakly alkaline. |
Xinhua lime - Introduction
Vienna lime (also known as calcium hydroxide) is a chemical substance whose chemical formula is Ca(OH)2. The following is an introduction to the nature, use, preparation and safety information of Vienna lime:
1. Nature:
-Vienna lime is a white crystalline powder that is soluble in water to produce an alkaline solution.
-When exposed to air, Vienna lime will absorb moisture and react to form limestone (CaCO3) and water.
-Vienna lime is highly alkaline and corrosive and requires care when used.
2. Use:
-Vienna lime is widely used in the construction industry and agriculture.
-In construction, it is often used to prepare lime slurry, lime gypsum, lime paint, etc., for plastering, paint and cement production.
-In agriculture, Vienna lime is often used to improve soil, adjust soil acidity and alkalinity, and provide calcium for plants.
3. Preparation method:
-Vienna lime can be made by reacting calcium oxide (CaO) with water. The reaction equation is: CaO H2O → Ca(OH)2.
-Calcium oxide needs to be slowly added to the water during preparation. Because the reaction process will generate a lot of heat, it needs to be operated carefully to avoid violent splashing.
4. Safety Information:
-Vienna lime is corrosive, avoid direct contact with skin and eyes, and wear protective gloves and goggles when using it.
-When operating Vienna lime, it should be done in a well-ventilated place and avoid inhaling its dust.
-When stored, Vienna lime should be kept away from flammables and strong acids.
Last Update：2024-04-10 22:29:15