Disposal of Potassium Permanganate?

[Labbie]

Yes it is a legal issue

[mtg]

Surely it would depend on the strength? A strong soln would be a toxic oxidiser but a very dilute soln would contain only traces of KMno. Our sinks have to go thru a special gully trap that the dept checks every so often. Maybe you could contact the supplier or manufacturer on the label and see what they say.

[Labbie]

We also have a pit, from science, and all science sinks go to this pit, it is also checked once a year.

[mtg]

OK Senoirs moment.....but just looked at my own Risk Assessment: R50 and R53- "very toxic to aquatic organisms",- collect for disposal. And I have a waste bottle for collection in the 5.1 cupboard. S60 Which says "this material and its container must be disposed of as hazardous waste" and S61 "avoid release to the environment...."

[Adrianna]

Isn't Mn a heavy metal? therefore it can be treated as per heavy metal waste in CSIS, top layer decanted and ppt stored in heavy metal waste container?