What is Hydrobromic Acid?
Hydrobromic acid is a powerful acid formed in water by dissolving bromides of hydrogen. Hydrobromic acid is a diatomic molecule with the chemical formula for hydrobromic acid is HBr. Hydrogen bromide is a colorless, suffocating gas, very soluble in water and highly dissociated in aqueous solution. It readily fumes in the presence of moist air. Hydrogen bromide gas are highly corrosive substances that can cause severe burns upon contact.
Other names – Hydrogen bromide, bromane
| HBr | Hydrobromic Acid |
| Density | 1.49 g/cm³ |
| Molecular Weight/ Molar Mass | 80.9119 g/mol |
| Boiling Point | 122 °C |
| Melting Point | -11 °C |
| Chemical Formula | HBr |
Hydrobromic Acid Structure – HBr
Physical Properties of Hydrobromic Acid – HBr
| Odour | Pungent irritating odor |
| Appearance | Colorless/faint yellow liquid |
| Covalently-Bonded Unit | 1 |
| Heat capacity | 29.1 J/(K·mol) |
| Hydrogen Bond Donor | 1 |
| Solubility | Soluble in water |
Chemical Properties of Hydrobromic Acid – HBr
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- Hydrobromic acid reacts with sulfuric acid forming sulfur dioxide, bromine and water. The chemical equation is given below.
2HBr + H2SO4 → Br2 + SO2 + 2H2O
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- Hydrobromic acid reacts with propene undergoe addition reaction resulting in the formation of 2-Bromopropane. The chemical equation is given below.
HBr + C3H6 → C3H7Br
Uses of Hydrobromic Acid – HBr
- Used as a chemical intermediate, the major uses for elemental bromine are as a sanitizing or disinfecting agent.
- Used as a reagent and as a catalyst in a variety of organic reactions.
- Used in the preparation of numerous organic compounds.
- Anhydrous hydrobromic acid is hazardous and shipped in high pressure cylinders.
Frequently Asked Questions – FAQs
Q1
What is bromane?
HBr
Q2
When bromine is added to an alkene, which reaction will happen?
Addition reaction.
Q3
What are the products of the reaction between hydrobromic acid with sulphuric acid?
Bromine, sulfur dioxide and water
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