Australia's Science Forum

Oh I feel you pain! We have some polyethylene gloves that were recyclable when REDcycle was functioning (if they were cleaned and dried), but I know of no environmentally friendly option at the moment. I actively discourage unnecessary glove use. We all need to talk to our suppliers and get them thi...

I use 36% HCl on glassware. Obviously, I use the fume cupboard and PPE. Leave to soak overnight and voila! Usually gets anything off. I return the HCl to a stock bottle for for future use - it lasts for ages.

Taken from Google - Class A Borosilicate volumetric glassware has superior thermal and chemical resistance and is better suited to glassware for storage of solutions, e.g. flasks. The use of Class A borosilicate glass for volumetric glassware means accuracy is retained over a longer working lifetime...

We use H2O2 a lot, and I always buy the 2.5L container. We keep it in the fridge (technically not recommended unless it's a "spark-free" fridge, whatever that is). Have had no issues with decomposition yet. I would estimate sometimes we use stuff that's at least two years old.

Our ferrous chloride is in CS cabinet with the other class 8 stuff.

Slaters are very common and easy to find. Leaf litter or under logs or rocks are the best places. Good luck!

The versions I've seen call for lighter fluid, metho, or ethanol. Perhaps any accelerant will do.

I just got sent a link via RiskAssess from a teacher who wants to show the kids the experiment that went so wrong. The first thing my eye fell on was "Do not perform this experiment in windy conditions". This warning was repeated several times. I think that teacher is in big trouble.

And sugar. We've done it here small-scale. Fine to do inside. I wonder why they decided on outdoors. Teacher must have used a lot of metho. It would have been like napalm - those kids are not going to enjoy science with flames or explosions in the future. I wonder if anyone did a risk assessment. Su...

And thank you from me too!

These are amazing. Will definitely be appropriating them. Thank you.

For an example, this is from RiskAssess for sodium nitrate.
Disposal
Retain for collection by a waste service. Do not place in the garbage. <100 g/day may be dissolved in 10 times the mass of water and poured down the drain.

If you don't have RiskAssess, use the SDSs.

I am amazed! And now feeling slightly inadequate.

Perhaps try "swan-neck flask" instead.

I made up a 0.1M solution of calcium fluoride last week and got a cloudy solution with some left on the bottom, so some of it dissolved. Interestingly, CaF2 is so insoluble that the labelling program on RiskAssess won't allow for the concentration to be listed - it assumes you're labelling the solid.

I just use paper labels and write in pencil on those. I do put stickers on the bottles re who can use them (the coloured dots). All the heavy metals should be separate, as they're too hard to neutralise when mixed. I learned from somewhere... Lead waste - add solid sodium carbonate, decant clear sup...

I'll know this by next week! We're doing that prac too. Sorry I can't help you now.

I love it that we are finally doing this.

Already have. They accept any organic matter.

I wrap mine in paper and put it in my green bin at home - it becomes compost! I flat-out refuse to put it in landfill. Too wasteful, and it causes the release of methane, a potent greenhouse gas.