Hydrobromic acid: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 1: | Line 1: | ||
{{Compound|chemf=HBr|mm=80.91|density=0.0036452|mp=-86.9|bp=-66.8|sol_aq=1930|group=Mineral Acids|stp_p= | {{Compound|chemf=HBr|mm=80.91|density=0.0036452|mp=-86.9|bp=-66.8|sol_aq=1930|group=Mineral Acids|stp_p=liquid|stp_q=colorless/faint yellow|nfpa_h=3|ior=1.325}} | ||
==Uses== | ==Uses== | ||
===Primary=== | ===Primary=== | ||
Latest revision as of 22:49, 28 June 2023
| Chemical formula | HBr |
|---|---|
| OTP appearance | colorless/faint yellow liquid |
| Index of refraction | 1.325 |
| Molar Mass(g/mol) | 80.91 |
| Density(g/cc) | 0.0036452 |
| Melting Point(°C) | -86.9 |
| Boiling Point(°C) | -66.8 |
| Solubility in water(g/L) | 1930 |
| NFPA 704 |  0
3
0
|
Uses
Primary
- Key chemical intermediate for bromine chemistry.
Natural occurrence
- does not occur naturally.
Hazards
- HBr is highly corrosive and irritating to inhalation.
Production
Extraction
Synthesis
- Combine sodium bromide and sulfuric acid:
- NaBr + H2SO4 → NaHSO4 + HBr
- React bromine with water and sulfur:
- 2 Br2 + S + 2 H2O → 4 HBr + SO2
- React bromine with water and sodium metabisulfate giving hydrobromic acid and sodium bisulfate
Testing
Purification
Bromine contamination can be removed by passing the gas through a solution of phenol dissolved in carbon tetrachloride at room temperature
- HBr(v) + Br2(v) + CCl4(l) + C6H5OH(diss) → 2 HBr(v) + CCl4(l) + C6H4OHBr(diss)
Storage
Disposal
See Also
References
- ↑ How to get Hydrobromic acid (HBr) from Br2
courtesy Science Madness. - ↑ HBr from Br2
courtesy OrgSyn.