What is NaBr? Important knowledge about NaBr.

1. Definition of NaBr

NaBr, or Sodium Bromide, is a type of chemical compound belonging to the salt group, formed from the combination of the elements Sodium (Na) and Bromine (Br). The English name of NaBr is Sodium Bromide. The atomic mass of NaBr is 102.89 g/mol. A NaBr molecule comprises one sodium atom (Na) and one bromine atom (Br) linked together. In this case, Na will donate 1 electron to Br, forming the ions Na+ and Br-.

2. Properties of NaBr

2.1 Physical properties of NaBr: NaBr takes the form of white crystals, odorless and soluble in water. The pH value of Sodium Bromide solution is 7, which is neutral.

2.2 Chemical properties of NaBr: NaBr has the ability to react with strong acid (such as HCl, H₂SO₄) to form HBr. Moreover, NaBr can also react with stronger metals like K to form KBr.

3. Common chemical equations for NaBr

NaBr + HCl -> HBr + NaCl
NaBr + H₂SO₄ -> HBr + NaHSO₄
2NaBr + Cl₂ -> 2NaCl + Br₂
2NaBr + I₂ -> 2NaI + Br₂
NaBr + K -> KBr + Na

4. Synthesis of NaBr

4.1 Laboratory synthesis of NaBr: Heat a solution of NaOH with Br₂, then cool and refine to obtain NaBr.

4.2 Industrial synthesis of NaBr: NaBr is produced by allowing bromine to react with a solution of sodium hydroxide, sodium carbonate or sodium acetylide, and then through the refining process to obtain the final product.