G'day Gautier
I sincerly hope you don't think I'm having a go at you. Rather in the interest of accurate information on this forum, the chemist in me feels the need to respond :thumbup:
Well, sodium nitrate, for one is used in explosives for mining and is often in itself found naturally in arid regions(in a white, crusty formation, as DaveUSAF alluded to), long chain alkyl alcohol is also used as frother for segregating minerals, chlorine(such as that in Chloride, Arizona, an old mining town), ammonium sulphate and ammonuium hydroxide are also compounds used in mining, ANFO(ammonium nitrate and fuel oil) is a common explosive to mining, naturally occuring benzene and toluene(common in arid areas), just to name a few.
First up Sodium nitrate, NaNO
3 (as a salt), has a Boiling pt of 210 dedrees C (110 degrees C bove the BP of water). Not at all likey to boil at the same temp as water and therefore appear in any significant quantaties in the condensed steam.
Secondly, care to identify the "long chained akyl alcohols used as frothers for segregating minerals". I'm sure that you already realise that a short chained alkanol like propanol (with only 3 carbons, that can hardly be descibed as "a long chain alkanol") boils at 97.1 degrees C .
How about the 4 carbon alkanol Butanol, the boils at 117 deg C?
What about a 5 Carbon alkanol like pentanol, with a BP of 138 deg C that is increasingly less likely to make up a significant portion of the condensed steam.
I'm sure you see the trend here. The longer the Carbon chain in the Alkanol, the higher the boiling point.
Without further specific information about the actual "long chained Alkanol" your referring to, I really can't comment any further.
Thirdly, Ammonium Sulfate (NH
4SO
4).
This stuff doesn't even boil because it decompose at a temp 100 deg C above the boiling point of water. Again not likely to be a significant contaminent of the condensed steam.
Ammonium Hydroxide (NH
4OH). Since this has such a low BP for the levels you are talking about (I assume less than 10%), it will have already boiled off before anyone would want to distill the water where it once was.
With regards to both Benzene & Toluene, you are correct here in reckoning that both have a similar BP to water, But I've got to honestly ask how likely they are to be found in any serious concentrations in the water in the areas we are talking about.?
IMO, if both are in high levels in these areas,
then your local, state & federal governements need a real "Kick up the Ar$e from here to kingdom come" for allowing this
I won't speak for anyone else, but I will continue to distill water in situations where I think there will be chemical contaminents. :thumbup:
But then again, I live in a country where water in remote country is still free from chemical contaminents & microbial parasites
Obviously OMMV :thumbup::thumbup:
Kind regards
Mick