Wednesday, 25 January 2012
An explanation about separating rocksalt
Then you have to take a pan, fill it with the saltwater and boil it. This will separate the salt and the water by turning the water into vapour because if a liquid gets hot enough it evaporates, turning it into vapour. To collect the vapour you can take a tray that has been in the freezer and hold it over the pan upside down. The cold will condense the steam back into water, turning it from a gas into a liquid. After a minute the tray will feel wet.