Bromine water is an orange solution of bromine. It becomes colourless when it is shaken with an alkene. Alkenes can decolourise bromine water, but alkanes cannot. The slideshow shows this process.

A halogen cannot displace itself from a solution of one of its salts, eg potassium bromine would not displace bromine water, so these combinations are not done.

We could smell the signature bromine water scent that guests grew ... The post PHOTOS, VIDEO: Tiana’s Bayou Adventure Ride Vehicles Testing with Water Dummies and Updated Lap Bars appeared ...

To Conduct Demonstration: Pour two samples of heptane and two samples of cyclohexene into separate test tubes in a lighted rack. Add one or two drops of 1% bromine in dichloromethane to one sample of ...

bromine water, and ethanol. The team also found equipment used for drug production, including a UV controller, vacuum oven, electronic scales, test tubes, funnels, pipettes, beakers, flasks ...