What is BaBr2? Important knowledge about BaBr2

1. Definition of BaBr₂

BaBr₂, also known as Barium bromide in English, is a chemical compound consisting of three atoms, two Bromine atoms and one Barium atom. The molar mass of BaBr₂ is 297.14 g/mol. The molecular structure of BaBr₂ consists of Ba₂+ ion and two Br- ions.

2. Properties: BaBr₂

2.1 Physical properties of BaBr₂

State: BaBr₂ exists in solid form at room temperature. Its color is white. Odor: BaBr₂ has no distinctive smell. pH: BaBr₂ when dissolved in water forms an alkaline solution, so its pH is greater than 7.

2.2 Chemical properties of BaBr₂

BaBr₂ dissolves well in water and can react with acids to form Barium ion and Bromide ion.

3. Common chemical equations of BaBr₂

BaBr₂ can react with metals, acids and non-metallic elements. Some examples of chemical reactions of BaBr₂ include:

• Acid reaction: BaBr₂ + H₂SO₄ -> BaSO₄ + 2HBr
• Reaction with non-metal: BaBr₂ + Cl₂ -> BaCl₂ + Br₂
• Reaction with salt: BaBr₂ + Na₂SO₄ -> BaSO₄ + 2NaBr

4. Preparation of BaBr₂

4.1 Lab preparation of BaBr₂

BaBr₂ can be prepared in the lab by reacting Barium nitrate with a Bromide salt such as NaBr.

4.2 Industrial preparation of BaBr₂

Industrially, BaBr₂ is typically prepared by reacting Barium carbonate or Barium sulfide with hydrobromic acid.