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http://www.ebuyer.com/179913-feser-aqua-ultra-pure-coolant-1l-fa-0054
"...is extremely pure water..."
"PH: 2.0 - 3.0"
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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On 7/28/2011 12:24, Orchid XP v8 wrote:
> http://www.ebuyer.com/179913-feser-aqua-ultra-pure-coolant-1l-fa-0054
> "...is extremely pure water..."
Pure water is non-conductive. Water with contaminants is conductive.
> "PH: 2.0 - 3.0"
They have also filtered out the dissolved carbon dioxide from the air which
would tend to make the water acidic.
--
Darren New, San Diego CA, USA (PST)
How come I never get only one kudo?
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Le 28/07/2011 21:24, Orchid XP v8 nous fit lire :
> http://www.ebuyer.com/179913-feser-aqua-ultra-pure-coolant-1l-fa-0054
>
> "...is extremely pure water..."
>
> "PH: 2.0 - 3.0"
>
more interesting: 1000ml ... 1,100g !
They also tuned the gravity field.
(ok, maybe it's bottle+water)
And what is PH ? pH yes, but PH ?
Also, notice, once open, any floating dirt in the air will contaminate
the water... in a fraction of second.
In fact, the air inside the bottle is not clean enough... they should go
the tires way: have it filled with 100% nitrogen (gas) instead of air.
Oh, btw, what about dissolved gas into the water after a storage of a
few weeks ? (closed bottled)
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On 28/07/2011 10:38 PM, Le_Forgeron wrote:
> Le 28/07/2011 21:24, Orchid XP v8 nous fit lire :
>> http://www.ebuyer.com/179913-feser-aqua-ultra-pure-coolant-1l-fa-0054
>>
>> "...is extremely pure water..."
>>
>> "PH: 2.0 - 3.0"
>>
> more interesting: 1000ml ... 1,100g !
Um, yeah.
> (ok, maybe it's bottle+water)
Perhaps. But don't bet on it!
> And what is PH ? pH yes, but PH ?
Well, ebuyer is very bad at formatting product descriptions properly.
Most of them look like they blindly copy/pasted from the manufacturer's
website. Hell, whoever did this probably thought that "pH" was a typo
and helpfully "corrected" it.
> Also, notice, once open, any floating dirt in the air will contaminate
> the water... in a fraction of second.
>
> In fact, the air inside the bottle is not clean enough... they should go
> the tires way: have it filled with 100% nitrogen (gas) instead of air.
>
> Oh, btw, what about dissolved gas into the water after a storage of a
> few weeks ? (closed bottled)
OK, well I work for a lab company, and we really do use chemically pure
water, so this is a subject I know a little bit about.
Nitrogen dissolves in water. Not as readily as some gasses, but it does
dissolve. Apparently helium is the thing to use. (Indeed, we have
degassing equipment that works by merely bubbling helium through the
liquid. Any dissolved gasses tend to precipitate into the helium bubbles
and leave with them.) Helium is very, very insoluble in liquids. I don't
know why.
For this application (i.e., liquid cooling a computer), dissolved gas is
unlikely to be important. Also, while dissolved CO2 might make the water
very slightly acidic, pH 2 is *very* acidic. Either they got their
measurements hopelessly wrong, or this "very pure water" actually
contains some kind of additive (perhaps to limit corrosion or something).
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On 28/07/2011 09:28 PM, Darren New wrote:
> On 7/28/2011 12:24, Orchid XP v8 wrote:
>> http://www.ebuyer.com/179913-feser-aqua-ultra-pure-coolant-1l-fa-0054
>> "...is extremely pure water..."
>
> Pure water is non-conductive. Water with contaminants is conductive.
I'm aware of that. (Although apparently many people aren't.) Our lab
water purification system (which really *does* produce "very pure
water") measures water purity in mega-Ohms - which is amusing, given
that it's the /non/-ionic containments which we're worried about!
>> "PH: 2.0 - 3.0"
>
> They have also filtered out the dissolved carbon dioxide from the air
> which would tend to make the water acidic.
Um, what?
pH 2 is *very* acidic. Pure water should be pH 7.0. Things having a pH
of 2.0 include lemon juice and vinegar. (Stomach acid is pH 1.0.)
By contrast, Wikipedia quotes a pH of about 5.65 for a solution of CO2
in water - much higher than 3 as quoted on the bottle. (Even fizzy water
as found in fizzy drinks is only about pH 4.)
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Orchid XP v8 <voi### [at] dev null> wrote:
> http://www.ebuyer.com/179913-feser-aqua-ultra-pure-coolant-1l-fa-0054
> "...is extremely pure water..."
> "PH: 2.0 - 3.0"
Today's WTF is rather unusual in that it requires a degree in chemistry
rather than in computer science (which is the usual norm here). I for one
don't know what you are talking about and, for once, am too lazy to do some
google-based research. :P
(Ok, the "requires a degree" part is an exaggeration, but you know what
I mean.)
--
- Warp
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Le 2011-07-29 04:12, Invisible a écrit :
> Well, ebuyer is very bad at formatting product descriptions properly.
> Most of them look like they blindly copy/pasted from the manufacturer's
> website. Hell, whoever did this probably thought that "pH" was a typo
> and helpfully "corrected" it.
>
The product description looks like it was written by Google's
Translation tool. "Through a reverse osmosis and mixed bed facility is
also demineralized water. " WAT????
> For this application (i.e., liquid cooling a computer), dissolved gas is
> unlikely to be important.
Actually, it would be. Gas bubbles have a very different heat transfer
coeeficient and will act as an insulator, instead of a conductor.
> Also, while dissolved CO2 might make the water
> very slightly acidic, pH 2 is *very* acidic. Either they got their
> measurements hopelessly wrong, or this "very pure water" actually
> contains some kind of additive (perhaps to limit corrosion or something).
If it contains an additive, is it still "very pure"? Also, the bottle
says that it is NOT an anti-corrosive agent, and that it should be mixed
with one, preferably their own, of course.
Overall, I'm getting a bad-vibe from this product. Just like when
reading the description of audiophile gear. Especially when you factor
in the deep barytone voice that says "Feser aquaaa. Ultra puuurrrre
Waterrrr" when you visit their web site.
--
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/* flabreque */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/* @ */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/* gmail.com */}camera{orthographic location<6,1.25,-6>look_at a }
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On 29/07/2011 02:51 PM, Francois Labreque wrote:
> The product description looks like it was written by Google's
> Translation tool. "Through a reverse osmosis and mixed bed facility is
> also demineralized water. " WAT????
lolrus.
Have you ever tried reading the user manual for a motherboard? I'm sure
those things are translated from Korean. Also love the way they say
things like "option shadow video ram: causes shadowing of video ram".
Gee, like, I couldn't figure that out. WHAT IS SHADOWING?! :-P
>> For this application (i.e., liquid cooling a computer), dissolved gas is
>> unlikely to be important.
>
> Actually, it would be. Gas bubbles have a very different heat transfer
> coeeficient and will act as an insulator, instead of a conductor.
This only matters if the gas comes out of solution. While it is /in/
solution, it is unimportant. Given the typical dimensions of the various
water-cooling components, you'd have to have pretty damned big bubbles
for it to matter.
To put it another way: Car engines are water-cooled. Typically not with
especially pure water either...
>> Also, while dissolved CO2 might make the water
>> very slightly acidic, pH 2 is *very* acidic. Either they got their
>> measurements hopelessly wrong, or this "very pure water" actually
>> contains some kind of additive (perhaps to limit corrosion or something).
>
> If it contains an additive, is it still "very pure"?
Exactly.
Didn't the Coca-Cola company at one time try selling "extremely pure
water" which was "triple-filtered" with "added minerals for extra purity"?
> Also, the bottle
> says that it is NOT an anti-corrosive agent, and that it should be mixed
> with one, preferably their own, of course.
You can READ that?? o_O
> Overall, I'm getting a bad-vibe from this product.
Heh, yeah. If I ever really /need/ very pure water... we lab has a
£8,000 water purification system? Maybe I should just use that? :-P
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Le 29/07/2011 16:05, Invisible nous fit lire :
>> Overall, I'm getting a bad-vibe from this product.
>
> Heh, yeah. If I ever really /need/ very pure water... we lab has a
> £8,000 water purification system? Maybe I should just use that? :-P
If you needed very pure water, you would go the enterprise way: ask for
allowance to pump the very old water table. Not the easy one, the very
old and very slow to fill one. Deep. Very deep. Not centuries of
filtering. Not even millenium... far more time!
Only available on continents, away from beaches.
Otherwise, use a simple cloth dryer with condensation, or just buy the
distilled water for iron.
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On 28-7-2011 21:24, Orchid XP v8 wrote:
> http://www.ebuyer.com/179913-feser-aqua-ultra-pure-coolant-1l-fa-0054
>
> "...is extremely pure water..."
>
> "PH: 2.0 - 3.0"
>
What about: 'Feser Aqua Ultra Pure Water is extremely pure water. This
is largely removed by a double distillation process of salts, ions,
trace elements and impurities'?
So you have pure water, then you remove it, and then you sell it?
--
Apparently you can afford your own dictator for less than 10 cents per
citizen per day.
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