Is Calcium Oxide Soluble in Water? Understanding Its Solubility and Uses

Discover whether calcium oxide is soluble in water, how it reacts to form limewater, and its common industrial applications.

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Calcium oxide is sparingly soluble in water, forming a solution known as lime water. Upon dissolving, it reacts with water to produce calcium hydroxide, a process known as slaking. Given its limited solubility, calcium oxide is used in various applications, including water treatment and as a reagent in laboratories.

FAQs & Answers

  1. What happens when calcium oxide dissolves in water? When calcium oxide dissolves in water, it reacts to form calcium hydroxide, commonly known as slaked lime, which makes the solution alkaline.
  2. Is calcium oxide highly soluble in water? Calcium oxide is sparingly soluble in water, meaning it dissolves only to a limited extent to form lime water.
  3. What are the common uses of calcium oxide in industry? Calcium oxide is widely used in water treatment, as a chemical reagent in laboratories, and in the manufacturing of cement and steel.

Watch More

For more insights on calcium compounds and their applications, explore our articles on calcium hydroxide uses, water purification techniques, and related chemical reactions.

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