|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
97.93.96.37
In Reply to: RE: so it's actually a both/and phenomenon - the generation of potassium carbonate... posted by mhardy6647 on March 08, 2015 at 15:18:45
Can cause potassium hydroxide to lead from the battery. That's the fine white powder. It is corrosive and will react to metals that it touches. Similar reactions or leakage of chemicals cause terminals to corrode in car batteries.
KOH is an irritant, so be careful cleaning it off.
Follow Ups:
the way I see it is that the white crystal buildup is not potasioum hydroxide but rather potassium carbonate that is made when potassium hydroxide comes in contact with the carbon dioxide in the air.
There may be some corrosion on copper, but the main problem is that the potassium carbonate insulates not conducts electricity. Unless you can get to it to clean it off no current flows, and as I discovered sometimes the buildup is in a spot well away fom the battery terminals not easily reached. I've had issues with remotes with long dead batteries getting corroded in places not easily reached.
Since potassium carbonate is water soluble you could try washing it off of battery contacts using a dampened Q-tip and then drying the same with a dry Q-tip, but my scraping technique using a small screwdriver worked as well. I'm still wondering how the ptotassium hydroxide and carbonate was able to magically migrate to a separate spot so far away from the battery contacts, interestingly, traveling uphill.
from chemical reactions inside battery causes solid salts to form. Solids expand against seals -> leaks.
Similar to what happens to old electrolytic capacitors.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: