De-ionized water is pure, usually more pure than distilled...if it's good DI water.
 Chemists use DI water *because* it's pure.
Distillation is just one way to remove contaminant ions...one way to de-ionize it. But distilled water only need be pure enough to not foul batteries and irons to qualify. It's usually much better than the minimum requirements. Reverse Osmosis water can sometimes be good enough, but not usually. Plain filtered [somehow]..not.
 Filters can even add contamination to distilled water.
Sometimes DI water is called purified water, but the parameters and methods required to meet the definitions are more lax, so that depends on who is writing the labels.

Ode


At 06:18 PM 11/23/2006 +0000, you wrote:

Nope - believe me I'm quite happy to take advice - will keep looking for didtilled water if it's necesary. BTW What happens if you just use filtered or purified water. I'm curious to know what I would end up with.

Cheers
Kirsteen


On 11/23/06, Sandee George <<mailto:[email protected]>[email protected]> wrote:
Hi There - I am sorry to tell you that De-ionized water and steam
distilled water are not the same - if you use the di-water
you will end up with a mess however do not listen to me try it and see
what result you get !!!
Regards
Sandee


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