Hi Aldi, Atrazine is a chlor -azine herbicide; Not good for people and other living things!
One of the problems with steam distillation is that some substances can be carried over in the steam, even oils and other organics. Some of these compounds have a vapor pressure that is similar to water's. In fact one way of purifying various compounds is to put them into a steam distiller and collect them in the distillate, after which the pure compound is separated from the distilled water i.e. by evaporation at low pressure/temperature. One solution (Eeww! Pun!) to this is to use reverse osmosis, in which a permeable-to-water-molecules membrane is used - many years ago this was done in high school chem classes with the old standby cellophane; Nowadays special membranes are made for the purpose. Note that these are Not the same as "filters" in the usual sense; A reverse osmosis filter system requires some additional pressure on the feed side as well as extra flow to act as a rinse medium, and also several pre-filters down to 1 micron so the R.O. membrane isn't plugged up by coarser debris. If water purified by reverse osmosis is then put through a de-ionisation cartridge to remove the few remaining ions small enough to make it through the R.O. membrane, that's about as good as you can get and is the process used in most labs and medical facilities to make their own pure water. Malcolm On Fri, 2009-05-29 at 15:58 +0200, Golden Aldi wrote: > I've just ordered a steam distiller, 220V to start making my own > water. I've read that even after distillation, there are still traces > of Nitrat 0,10mg/ltr, Chlor ,05mg/ltr, Phosphat 0,02mg/ltr, Natrium > 0,07mg/ltr and Atrazin (have no idea what that is) 0,02mg/ltr. I > believe they used tap water for distilling, so if I used filtered > water, that should get most of the elements out before distilling, > thus giving me a more purer water. > > > Am I correct in my assumptions? > > Aldi > > This is the one I bought... > (http://www.ionic-pulser.eu/wasser/dampfdestilliergeraet.html) -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>
