hydrobromic

It may also be prepared by oxidizing the trimethylene glycol obtained by the action of hydrobromic acid on allylbromide.

Hydrobromic acid gas is colourless and non-inflammable; it extinguishes flame.

Hydrobromic acid in ethereal solution gives furfurane derivatives.

Barium bromide is prepared by saturating baryta-water or by decomposing barium carbonate with hydrobromic acid.

When heated with concentrated hydrobromic or hydriodic acids, it is converted into fumaric acid.