Waste from Redox Reactions
Posted: 13 Mar 2024, 09:02
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.
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.