From: | "Morken, Tim - Labvision" |
Distilled water is classically produced by
heating water to evaporation and subsequent condensing on a cold surface. In
the process most impurities are either evaporated off ahead of the water (in
the case of most organics), or left behind (in the case of minerals). The water
is also effectively deionized because the salts are
left behind. It is fairly pure water. To get very pure water it needs to be re-distilled
several times.
Deionized water is classically passed through a salt bed or ionized resin
bed that captures the mineral ions (ie, a "water
softener"). The water is not necessarily pure, however, especially in
regards to organic chemicals. Reverse osmosis is also used now days to deionize water.
High quality water systems these days are some
combination of filters, distillation, deionizing
resins and reverse osmosis.
Tim
Morken
-----Original Message-----
From: JCarpenter764@aol.com
[mailto:JCarpenter764@aol.com]
Sent:
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histonet@lists.utsouthwestern.edu
Subject: [Histonet] (no subject)
while studying for my exam on the
different fixatives and there ingredients....i have noticed that some call for
distilled water and some use the term deionized water. Is there a
difference?