KonkreteRocketry
Hazard to Others
Posts: 165
Registered: 12-11-2012
Location: Dubai
Member Is Offline
Mood: No Mood
|
|
Extremely small platinum anode ?
Hello guys, I found a store beside me that sells 0.1 gram of platinum for 35 dirhams, which is around 10 dollars. it is a long, and very thin wire
shaped. I was wondering if i could buy that for platinum anode. yeah.
it looks exactly like this _____________________
Yupp. So can i make chlorate with it ? will the platinum corrode? I am wanting to make som sodium chlorate with it, if theres possible route to it
with this small platinum wire then i would give it a try, thanks.
|
|
|
hissingnoise
International Hazard
Posts: 3940
Registered: 26-12-2002
Member Is Offline
Mood: Pulverulescent!
|
|
| Quote: | | So can i make chlorate with it ? will the platinum corrode? |
Yes to both ─ but at negligibly slow rates . . . perchlorate too!
The electrical conductance of Pt is appreciably lower than that of Cu or Al so that you'd need to spend a lot more than $10 for a usable anode!
|
|
|
KonkreteRocketry
Hazard to Others
Posts: 165
Registered: 12-11-2012
Location: Dubai
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by hissingnoise  | | Quote: | | So can i make chlorate with it ? will the platinum corrode? |
Yes to both ─ but at negligibly slow rates . . . perchlorate too!
The electrical conductance of Pt is appreciably lower than that of Cu or Al so that you'd need to spend a lot more than $10 for a usable anode!
|
so 2 wires arent enough  2 wires is 20 dollars.. thats like so much to me -.- im
poor.
|
|
|
hissingnoise
International Hazard
Posts: 3940
Registered: 26-12-2002
Member Is Offline
Mood: Pulverulescent!
|
|
Graphite anodes are sufficient for chlorate . . .
More here!
|
|
|
plante1999
International Hazard
Posts: 1936
Registered: 27-12-2010
Member Is Offline
Mood: Mad as a hatter
|
|
It is not the length that mater, it's the thickness. You need about 0.5mm thickness minimum.
I never asked for this.
|
|
|
KonkreteRocketry
Hazard to Others
Posts: 165
Registered: 12-11-2012
Location: Dubai
Member Is Offline
Mood: No Mood
|
|
Thank you, but my carbon corrode also.... so ???
|
|
|
plante1999
International Hazard
Posts: 1936
Registered: 27-12-2010
Member Is Offline
Mood: Mad as a hatter
|
|
Buy MMO mesh, the member mixel supposedly live quite near you and could possibly ship you one if you bought him, I could too, but the shipping would
be extremely costly.
I never asked for this.
|
|
|
Endimion17
International Hazard
Posts: 1468
Registered: 17-7-2011
Location: shores of a solar sea
Member Is Offline
Mood: speeding through time at the rate of 1 second per second
|
|
Yeah, most of us are.
That's what she said. XD
|
|
|
plante1999
International Hazard
Posts: 1936
Registered: 27-12-2010
Member Is Offline
Mood: Mad as a hatter
|
|
@Endi
Then I'm ok, I have way more than 0.5 mm Ha Ha Ha
I should have taught someone would say such a joke...
[Edited on 2-4-2013 by plante1999]
I never asked for this.
|
|
|
Mixell
Hazard to Others
Posts: 449
Registered: 27-12-2010
Member Is Offline
Mood: No Mood
|
|
It is quite near, but virtually so far away...
Our post doesn't even offer service to their country (and several others).
|
|
|
KonkreteRocketry
Hazard to Others
Posts: 165
Registered: 12-11-2012
Location: Dubai
Member Is Offline
Mood: No Mood
|
|
hahahahahahhahahaahah
|
|
|
KonkreteRocketry
Hazard to Others
Posts: 165
Registered: 12-11-2012
Location: Dubai
Member Is Offline
Mood: No Mood
|
|
ok, seriously.. Can i use aluminum ? as it have a protective layer of al2o3 ? or can i use titanium ? can i see a list of metals that corrode
extremely slow to fast ? so i can decide what to buy ? thanks.
|
|
|
woelen
Super Administrator
Posts: 7976
Registered: 20-8-2005
Location: Netherlands
Member Is Offline
Mood: interested
|
|
Aluminium and titanium both are useless as anode. Aluminium quickly corrodes and titanium passivates and is covered by a thin but non-conductive
layer.
Indeed, buy MMO if you want good results, or otherwise use graphite and accept the erosion of the anode and the corresponding filtering problems.
If you use graphite, then use NaCl for making chlorate, then filter as good as possible (allowing the liquid to stand for several days and decanting
the clear liquid above the crap at the bottom is another option) and use KCl to crystallize KClO3.
If you use MMO, then use KCl for making chlorate and simply harvest crystals of KClO3 directly from the cell.
In both cases you also need some hexavalent chromium, but you can make that from bleach and some chromium(III) salt, such as chrome alum or chromium
sulfate.
|
|
|
Bezaleel
Hazard to Others
Posts: 444
Registered: 28-2-2009
Member Is Offline
Mood: transitional
|
|
If filtering the tiny carbon particles (from electrolysis with carbon electrodes) is troublesome, use a fritte with a thin layer of diatomacious
earth, or even alumina. This will filter any carbon out.
|
|
|
KonkreteRocketry
Hazard to Others
Posts: 165
Registered: 12-11-2012
Location: Dubai
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by woelen | Aluminium and titanium both are useless as anode. Aluminium quickly corrodes and titanium passivates and is covered by a thin but non-conductive
layer.
Indeed, buy MMO if you want good results, or otherwise use graphite and accept the erosion of the anode and the corresponding filtering problems.
If you use graphite, then use NaCl for making chlorate, then filter as good as possible (allowing the liquid to stand for several days and decanting
the clear liquid above the crap at the bottom is another option) and use KCl to crystallize KClO3.
If you use MMO, then use KCl for making chlorate and simply harvest crystals of KClO3 directly from the cell.
In both cases you also need some hexavalent chromium, but you can make that from bleach and some chromium(III) salt, such as chrome alum or chromium
sulfate. |
Why do i need chromium salt ? Is there any thing else ? wont it contaminate the chlorate ?
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
