How do you separate water from potassium chloride solution?

Answer 1

Assuming you just try to get a purer gold, solve the potassium gold chloride in pure water, and slowly add a diluted solution of potassium hydroxide (caustic potash). This makes the gold precipitate out of solution as gold hydroxide.

Two things that need be taken care of: first, avoid direct sunlight as it reduces the gold hydroxide to elemental metallic gold. Unless, of course, that's what you are looking after.

Second, add the potash slowly, and stop as soon as you see the solution becoming a dark red, blue, violet or black (color varies depending on conditions). If you keep adding potash beyond that point, it would somewhat re-dissolve the gold hydroxide. If that happens, add a bit of diluted chlorhidric acid (ClH) to acidify the solution, and repeat the addition of potash.

The dark liquid contains the gold hydroxide, but needs be left to stand for hours until all of the hydroxide falls down, and can be separated by decantation or filtration.

Gold hydroxide gets easily dissolved by chlorhidric acid, if you want to make it into gold chloride.

Answer 2

Potassium chloride is not separated by distillation.

Answer 3

Boiling off the water and collecting it is a way to separate the two compounds.

Answer 4

By heating water is released as vapors.

Answer 5

Evaporate the water from the solution.

Answer 6

Distillation :-)

Hope this helps

Answer 7

distillation