Ax165Xj
Harmless
Posts: 25
Registered: 31-5-2013
Member Is Offline
Mood: No Mood
|
|
Question on setup of electrochemical cell
I am a bit confused on the set-up of a divided cell. I know the whole salt bridge stuff but is that how it is actually done? I saw this cheap voltaic
cell that comes with a porous cup:
Economy Voltaic Cell
It makes sense in my head that the porous cup could serve a similar function as a salt bridge. Am I correct in thinking that?
|
|
Metacelsus
International Hazard
Posts: 2539
Registered: 26-12-2012
Location: Boston, MA
Member Is Offline
Mood: Double, double, toil and trouble
|
|
Yes, it serves the same purpose.
|
|
arkoma
Redneck Overlord
Posts: 1763
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
Member Is Offline
Mood: украї́нська
|
|
I've used a "salt bridge" tube, clay flower pots, and gore-tex. By far (for me) easiest, most trouble free has been the clay flower pot.
To do the salt bridge tube:
I used aquarium hose with a tightly wadded cotton ball in one end. Fill the hose with saturated salt (sodium chloride) solution. Keep in mind you
don't want air bubbles. Then pack another tightly wadded cotton ball in the other end. Voila!
This pic doesn't exactly match, but ya can get the idea. What your doing is giving a pathway for electrons to move, leaving the larger anions and
cations in their respective half cells.
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
|
|
Burner
Hazard to Others
Posts: 100
Registered: 28-3-2014
Member Is Offline
Mood: No Mood
|
|
Has anyone used Tyvek successfully? I have read a number of suggestions on the forum here where its use has been suggested but I have not seen anyone
report on its actual use, either positive or negative.
|
|
jock88
National Hazard
Posts: 505
Registered: 13-12-2012
Member Is Offline
Mood: No Mood
|
|
I think a guy who posts here (Burner?) is going to try some in the near future and report back.
|
|
nannah
Hazard to Others
Posts: 136
Registered: 20-12-2013
Member Is Offline
Mood: No Mood
|
|
How did he do with the tyvek? And how did he form a cup of the tyvek and kept it in place?
And how did the gore-tex do?
/Nannah.
|
|