An Introduction to Lime Water
Calcium hydroxide, also called slaked lime or lime water, is formed when water is added to calcium oxide or quicklime. This reaction is exothermic, therefore heat is also released along with calcium hydroxide. Since calcium oxide and water are combined together to form one by-product (calcium hydroxide), this reaction is also considered a combination reaction.
Slaked lime is also called by many other names, some of them are hydrated lime, pickling lime, caustic lime, etc. It is an amorphous white solid which is very stable and can withstand high temperatures.
FAQs on Get to Know the Lime Water Formula and Find More About Calcium Hydroxide
1. What is an ionic bond?
It is a bond formed due to electrostatic attraction between oppositely charged ions. It is a bond that forms when the electrons are transferred from one atom to another. It is also called electrovalent bond. If an atom loses electrons it becomes positively charged also called cation and if it gains electrons it becomes negatively charged also called anion. Compounds formed by ionic bonds are called either ionic or electrostatic compounds. When a compound is formed electrons are arranged in such a manner that the overall charge on the compound becomes 0.
2. What is lime water used for?
Lime water is used in medicine, antacids and lotions and to absorb carbon dioxide. It is also used in the fermentation process to determine if carbon dioxide is released during the reaction since when lime water is in contact with carbon dioxide it turns milky white. Waste gases containing sulphur dioxide from industries are passed through lime water to separate sulphur dioxide from water and thus purify it. It further helps in unlocking proteins from cornmeal thus making it more nutritious for the person who eats it.
3. What are the important compounds of calcium?
Calcium oxide or quicklime that is formed by decomposition of calcium carbonate, calcium hydroxide or slaked lime that is formed by combination reaction between water and quick lime, calcium carbonate that is obtained from calcite, calcium sulphate or plaster of paris is manufactured by heating gypsum at 373-393 K , etc. are some of the many possible components formed with calcium. Calcium carbonate is a major constituent of limestone, shells, marble, coral chalk, etc. It is the most common calcium compound that can be found.