symboom
International Hazard
Posts: 1143
Registered: 11-11-2010
Location: Wrongplanet
Member Is Offline
Mood: Doing science while it is still legal since 2010
|
|
unknown chemicals from an NiMH battery
So extracted a NiMH battery the componets ive found was a compresed black powder not sure if im right but I think it is nickel hydroxide that has
small amount of potassium hydroxide I know this because of the slippy feeling from it when I washed my hands off the metal that as I read is an alloy
not sure of what but supposedly this metal can absorb hydrogen gas
 
|
|
|
symboom
International Hazard
Posts: 1143
Registered: 11-11-2010
Location: Wrongplanet
Member Is Offline
Mood: Doing science while it is still legal since 2010
|
|
Thourgh inspection washing with vinagar the matereal was not a compressed black powder but a spongy metalic metal both pieces are magnetic and the
black powder is coating the spongy metal black powder desolves in HCl acid green solution forms bubbling evolves im guessing chlorine gas is being
formed
[Edited on 9-2-2016 by symboom]
|
|
|
j_sum1
Administrator
Posts: 6256
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: Organised
|
|
Forgive me if I have overlooked something here but your battery dissection looks remarkably similar to the picture in Wikipedia. Unless you have good
reason to suspect others=wise, i would assume that all of the components are the same as the ones in the wikipedia article.
https://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_b...
|
|
|
symboom
International Hazard
Posts: 1143
Registered: 11-11-2010
Location: Wrongplanet
Member Is Offline
Mood: Doing science while it is still legal since 2010
|
|
Yes absolutly the same which was very helpful in knowing the black powder was nickel oxyhydroxide and I find that it seems to be an oxidizer like
Manganese dioxide just as it forms Chlorine gas with HCl acid not like copper hydroxide which can not oxidize the acid though it leaves me guessing
about the metals contained example the spongy metal and the metal backing both do not desolve in HCl acid only speculation on wikipedia
Although the acid does desolve the powder well an improvment would be to use ammonia for a complex that way I wouldn't have to deal with the chlorine
gas and to spare the precious acid
[Edited on 9-2-2016 by symboom]
|
|
|
Oscilllator
National Hazard
Posts: 659
Registered: 8-10-2012
Location: The aqueous layer
Member Is Offline
Mood: No Mood
|
|
Symboom it isn't necessarily the case that it is chlorine gas. Chlorine has a distinct smell even at low concentrations, so you probably would have
smelt it if it was there. I have personally tried to dissolve Nickel batteries with various acids, and I don't remember smelling chlorine.
Perhaps the gas is hydrogen?
|
|
|
symboom
International Hazard
Posts: 1143
Registered: 11-11-2010
Location: Wrongplanet
Member Is Offline
Mood: Doing science while it is still legal since 2010
|
|
Quote: Originally posted by Oscilllator  | Symboom it isn't necessarily the case that it is chlorine gas. Chlorine has a distinct smell even at low concentrations, so you probably would have
smelt it if it was there. I have personally tried to dissolve Nickel batteries with various acids, and I don't remember smelling chlorine.
Perhaps the gas is hydrogen? |
interesting it out gassed alot it smelt like chlorine. Also I did not desolve
the casing of the battery only the insides hoping to desolve the metals along with the nickel oxyhydroxide
Very curious to understand what other metal than Palladium that can absorb hydrogen gas as mentioned in how NiMH batteries work
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
