Calcium permanganate

Calcium Permanganate

Calcium permanganate is an inorganic compound with the chemical formula Ca(MnO₄)₂. It is a salt consisting of calcium cations (Ca²⁺) and permanganate anions (MnO₄⁻). This compound is known for its strong oxidizing properties and is used in various applications, including water treatment and as a disinfectant.

Properties

Calcium permanganate is a purple crystalline solid that is highly soluble in water. It is a powerful oxidizing agent, similar to other permanganates such as Potassium permanganate. The compound decomposes upon heating, releasing oxygen and leaving behind manganese dioxide (MnO₂) and calcium oxide (CaO).

Chemical Formula

Ca(MnO₄)₂

Molar Mass

277.95 g/mol

Appearance

Purple crystalline solid

Solubility

Highly soluble in water

Preparation

Calcium permanganate can be prepared by the reaction of Potassium permanganate with calcium chloride in an aqueous solution. The reaction is as follows:

2 KMnO₄ + CaCl₂ → Ca(MnO₄)₂ + 2 KCl

This reaction results in the formation of calcium permanganate and potassium chloride as a byproduct.

Uses

Calcium permanganate is used in various applications due to its oxidizing properties:

• Water Treatment: It is used to remove iron and manganese from water, as well as to control taste and odor.
• Disinfectant: It serves as a disinfectant in water treatment processes.
• Oxidizing Agent: It is used in chemical synthesis as an oxidizing agent.

Safety and Handling

Calcium permanganate is a strong oxidizer and should be handled with care. It can cause fires if it comes into contact with combustible materials. Proper protective equipment, such as gloves and goggles, should be worn when handling this compound.

Also see

• Potassium permanganate
• Sodium permanganate
• Manganese dioxide
• Oxidizing agent