Chemical Process
Bromine is used in the preparation of

Fire extinguishing compounds
All of these
Fire proofing agents
Dyes and antiknock compounds

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Chemical Process
Reverse osmosis is normally used for the

Separation of helium from natural gas
Separation of isotopes of uranium from gaseous uranium hexaflouride
Desalination of brackish water to produce potable (drinking) water
Purification of oxygen

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