What Are Some Reactions That Involve Silver Bromate?

Silver bromate is a silver salt of bromic acid with the chemical formula AgBrO3. It is a white crystalline solid that is sparingly soluble in water. Here are some reactions that involve silver bromate:

1. Decomposition: When heated, silver bromate decomposes to form silver bromide and oxygen gas.

AgBrO3 (s) → AgBr (s) + 3/2 O2 (g)

2. Reduction: Silver bromate can be reduced by various reducing agents such as hydrogen peroxide, sulfur dioxide, or iron(II) ions to form silver bromide.

AgBrO3 (aq) + 4H+ (aq) + 2H2O2 (aq) → AgBr (s) + 5H2O (l) + 2O2 (g)

AgBrO3 (aq) + 2SO2 (g) + 2H2O (l) → AgBr (s) + 2H+ (aq) + 2HSO4− (aq)

AgBrO3 (aq) + 3Fe2+ (aq) + 6H+ (aq) → AgBr (s) + 3Fe3+ (aq) + 3H2O (l)

3. Precipitation: Addition of a solution of a soluble bromide salt, such as sodium bromide, to a solution containing silver nitrate and silver bromate will result in the precipitation of silver bromate due to its low solubility.

AgNO3 (aq) + NaBr (aq) + AgBrO3 (aq) → AgBrO3(s) + NaNO3 (aq)

4. Complex formation: Silver bromate can also form complexes with ligands such as ammonia, forming compounds like silver hexammine bromate.

AgBrO3 (aq) + 6NH3 (aq) → [Ag(NH3)6]BrO3 (s)

These are some common reactions that involve silver bromate.