Chemical waste and septic systems: I have been working in the education department for the last eight years, and have recently started working one day a week in a small school.
Risk assessment (thiosulfate): Do you have a RA for the reaction of 0.1M sodium thiosulfate with 2M hydrochloric acid, especially the cleaning up and disposal.
Disposal of empty helium cylinders: From browsing Google, there seems to be a lot of confusion on how to dispose of empty helium gas cylinders.
Disposal of silver nitrate solid: I have collected silver nitrate solution in a winchester and decanted it off, ready to evaporate the solution, so that I am left with just the solid waste.
Mercury Thermometers: how do we dispose of mercury thermometers?
Potassium permanganate: I would like to know how to dispose of potassium permanganate 0.02M solution. The MSDS states it is not a hazard but that it must not be put down the drain.
Organic waste: Students are investigating the reactions and properties of organic compounds from Heinemann Chemistry 2 VCE units 3 & 4.
Radioisotopes: One of our teachers is asking if we are still able/allowed to buy radioisotopes.
Chemical Waste from Ester Prac: I have previously been asked to dispose of the chemical waste from the ester prac by evaporating it on an absorbent material and disposing of this to landfill.
Organic chemistry: Could someone please advise about the safe storage and disposal of esters.