Quartz Trpple distrilled water

[WayneL]

Hi

Can anyone advise where I can get Quartz triple distilled water from (I'm in
the UK) and what is it the best conductivity you could expect from the most
purest water
Also what is the best way of 1/ storing ultra pure water and 2/ dispensing
it so that the rest of the water does not get contaminated. Should I
dispense it in to several small bottles with pipette lids?




Cheers

Wayne

 

[John Fields]

On Tue, 04 Jan 2005 19:13:36 GMT, "WayneL" <nospam-mail@wlawson.com>
wrote:

Hi

Can anyone advise where I can get Quartz triple distilled water from (I'm in
the UK) and what is it the best conductivity you could expect from the most
purest water

---
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=GGLD,GGLD:2004-42,GGLD:en&q=deionized+water
--
John Fields

 

[WayneL]

Thanks,

I have used google, but I am after water with an R>18MR.

Wayne

"John Fields" <jfields@austininstruments.com> wrote in message
news:bovlt05318kk3iq8429lq4ouhajaof44fi@4ax.com...

On Tue, 04 Jan 2005 19:13:36 GMT, "WayneL" <nospam-mail@wlawson.com
wrote:

Hi

Can anyone advise where I can get Quartz triple distilled water from (I'm
in
the UK) and what is it the best conductivity you could expect from the
most
purest water

---
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=GGLD,GGLD:2004-42,GGLD:en&q=deionized+water
--
John Fields

 

[John Woodgate]

I read in sci.electronics.design that WayneL <nospam-mail@wlawson.com>
wrote (in <wVDCd.375$II4.204@newsfe5-win.ntli.net&gt about 'Quartz Trpple
distrilled water', on Tue, 4 Jan 2005:

I have used google, but I am after water with an R>18MR.

Try asking the National Physical Laboratory. Few people talk to them
(scientists, you know), so your enquiry will be welcomed. (;-)
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[Active8]

On Tue, 4 Jan 2005 22:38:17 +0000, John Woodgate wrote:

I read in sci.electronics.design that WayneL <nospam-mail@wlawson.com
wrote (in <wVDCd.375$II4.204@newsfe5-win.ntli.net&gt about 'Quartz Trpple
distrilled water', on Tue, 4 Jan 2005:
I have used google, but I am after water with an R>18MR.

Try asking the National Physical Laboratory. Few people talk to them
(scientists, you know), so your enquiry will be welcomed. (;-)

LOL. Bureaucrats are the same all over I guess. Your corp. CEO, CTO,
CIO will most likely too buzy to answer questions. His Fed
countepart, even down to the CIO in charge of a roadside info shack,
will have plenty of time and info. YMMV on the info product but
they'll at least help you figure out who to call next.

--
Best Regards,
Mike

 

[Guy Macon]

See thread titled "Guy Macon's adventures with ultrapure water".

 

[Robert Baer]

Roger Hamlett wrote:

"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
news:v3FurKQZrx2BFw4W@jmwa.demon.co.uk...
I read in sci.electronics.design that WayneL <nospam-mail@wlawson.com
wrote (in <wVDCd.375$II4.204@newsfe5-win.ntli.net&gt about 'Quartz Trpple
distrilled water', on Tue, 4 Jan 2005:
I have used google, but I am after water with an R>18MR.
Make your own!...
Most labs using hyper/ultra pure water have small machines to do just
this. If you can find a company near you, involved in the preparation of
chemical reagants, they may be prepared to sell you some. The problem is
that if you 'buy' such water, it is incredibly difficult to keep it this
pure. Normal bottles will contaminate it in only a few minutes (so you end
up paying a lot for special containers - teflon coated linings). Do a
search through the companies offering laboratory reverse osmosis systems.
If one is near you, talk to them.
It is not something that is easy to ship, and retain the purity.

Best Wishes

Yes; the more pure the water is, the more corrosive it becomes
(relatively speaking).
Water is the universal solvent; even mountains turn into virtual
molehills when doused with water.
Water is a polar molecule, acid (H) and base (OH) combined.

 

[Dieter Britz]

beavith wrote:

On Thu, 06 Jan 2005 06:57:21 GMT, Robert Baer
robertbaer@earthlink.net> wrote:


Roger Hamlett wrote:

"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
[...]
Yes; the more pure the water is, the more corrosive it becomes
(relatively speaking).


?
no.

Well, it depends on what you mean by corrosive. In one sense, this
would be correct, because if you want really ultrapure water, then
as it gets purer, any corrosion of whatever it is in (quartz,
glass) or is in it (Pt) would matter more. But the actual amount
of metallic corrosion will decrease with increasing water purity, while
the dissolution of components out of the cell walls would be about
constant.

Water is the universal solvent; even mountains turn into virtual
molehills when doused with water.

Well, universal shmersal. Like all other solvents, it probably dissolves
anything to some extent, but that is not what we mean by universal. It
is, though, a pretty good solvent.

i wonder how long water would take to dissolve Pt.

A long time {:]. In cold fusion experiments, where they electrolyse
for days on end, using a Pt anode, they end up with traces of Pt on
the Pd cathode, which wasn't there before (the Pt I mean).

Water is a polar molecule, acid (H) and base (OH) combined.


???
so what?

Well, (again playing the pedantic Devil's advocate) it means that there
is small concentration of H+ ions (OK, H3O+ for the other pedant) plus
OH- ions, and the H+ ions will favour a bit of corrosion; so will any
small amounts of O2. But the ions are a result of the polar nature of
H2O.

--
Dieter Britz, Kemisk Institut, Aarhus Universitet, Danmark.