What is the consensus on disposal of waste produced from reacting:
a) dilute potassium dichromate (0.1M), sulfuric acid (0.05M) and potassium iodide (0.1M), with starch added as an iodine indicator (a black solid, presumably iodine complexed with the starch is present)?
b) dilute potassium permanganate (0.1M) with dilute hydrogen peroxide (0.1M), then dilute sulfuric acid (0.05M)? Again, I have a blackish precipitate that does not dissolve in water.
Waste from Redox Reactions
-
- Posts: 3
- Joined: 23 Jun 2023, 10:22
- Job Title: Lab Technician
- School: St Michael's Collegiate
- State/Location: TAS
-
- Posts: 1501
- Joined: 12 Mar 2013, 08:10
- Job Title: Labbie
- School: Wollondilly Anglican College
- Suburb: Tahmoor
- State/Location: NSW
Re: Waste from Redox Reactions
I can't help except to ask if you subscribe to Science Assist? Comparatively small fee which gives you access to a lot of resources, including the ability to ask questions and have them answered by experts. Really useful for those tricky problems.
-
- Posts: 830
- Joined: 15 Dec 2015, 10:49
- Job Title: Lab Technician
- School: FCAC
- State/Location: QLD
Re: Waste from Redox Reactions
They are both screaming heavy metal waste bottle to me .
Depending on how much you have to get rid of , I’d evaporate as much water out of it first ( in a fume hood)
I hate paying ti dump water![Whistling :whistling2:](./images/smilies/whistling.gif)
Depending on how much you have to get rid of , I’d evaporate as much water out of it first ( in a fume hood)
I hate paying ti dump water
![Whistling :whistling2:](./images/smilies/whistling.gif)