1) use of Na(OH)
2) we first use filtration method to separate dust particles . We then cool the gases to -200°c .The gases are then passed through a mixture of Na(OH) to remove CO2 gas. Oxygen liquifies at -183 while Nitrogen at -196. The mixture is passed in a fractionating column. Liquid Nitrogen boil first and rises to the top of the solution and is piped off for storage while oxygen settles at the bottom
Rophina answered the question on April 11, 2018 at 09:59
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