Australia's Science Forum

There's another thread on this suggesting capsicum instead of liver. We tried it, works well and smells good.

Heard the spiders are seriously big up there. Arachnaleptic fit: the dance you do when a spider drops on you.

Calcium chloride anhydrous lumps used in dessicator.

It was zinc nitrate. Good luck, and tell us how it goes, I too, need to dry some chems out.

I had this problem with a nitrate at the start of the year (zinc?) and there were lots of great replies. Maybe do a search????

Now I'm confused. If the conc HCl is around 32-33% would you then multiply the HCl amount by 3?, as the calculations are based on concentrated being 100%. But then you still have 67-68% of it as a liquid I'm assuming water. I dont even need it but I remember being totally flummoxed by this dilemma i...

ok, if I get fresh (next term tho') I'll soak them first and then freeze one and keep one in the fridge and I'll report on it. The local butchers break down the beasts themselves I believe. And thus I get dog bones and pet mince fresh. We are in the middle of beef farms and a free range piggery supp...

I've seen fresh in the supermarket but I was going to order them from the local butcher. So they'll be fresh. But I've found they go mushy and stink really quickly, so I was hoping the metho would firm them up and eliminate the smell.

Yes, Sodium Thiosulphate goes cold really quickly, quick and easy and not a nitrate. Sorry too lazy to do test results.

Can I soak brains in metho and then freeze for later use???? And what do you look at apart from the stem???

And....for a splint I use a wooden skewer as long matches and tapers were either wasted or dripped everywhere and me or the teacher dispense the MnO2. I wll try the plaster idea tho'. Can you use cornice cement? I use that instead of plaster of paris cos it's cheaper, but it goes off quicker.(sets)

OK Found their prac! They made tin/lead, tin/brass, tin/copper, copper/brass and the rest were rubbish apparently. However with the copper/brass, they used "a blowtorch" and when "neither had melted after 15 minutes....... we decided to use the oxy-acetylene torch...". I'm assumi...

We used to make an alloy- 4g of lead foil and 6g of tin foil, roll the metals together and place in a crucible. Heat the crucible til they melt, stir with spatula and then remove the oxide layer. (Stop heating after 5-6 mins.) Then use tongs to pour the alloy into a metal tray then flatten gently wi...

Welcome fellow labrat. Your life will never be the same!

Oh My Goodness, Thank you for this thread. I too use ChemSupply. I thought it was my computer that was the problem re Chemwatch. IT IS SO SLOWWWWW, and I cant seem to find anything much, and when I do manage to find a label the print is so small the kids and the teachers often grab the wrong strengt...

re hand accident: My MSDS only says slightly hazardous in case of skin contact??!! I've never had it set that quick either. Maybe they weren't using "dihydrate"? We do a footprint prac in damp sand and the fossil prac with shells and damp sand. Mix the calcium sulphate dihydrate so it can ...

We've got the home made wooden 1metre ones with wing nuts, these are just loosened a bit so I can fold them up. Some really good ideas in this thread.

I cant get my head around the toad thing. It sounds so disgusting.....but I guess if we had the cane toad problem here I would think differently. Maybe we should do rabbits and foxes?????

We did frozen rats, but only once due to an unpleasant smell and yukky liquid. Now we only do preserved. (and I did suss out disposal and southern biol said to bin them was ok) So I'd be interested to hear what the smell is like Satu11..... and if they end up in landfill....do rats eat rats????

I keep my diluted solutions in their classification storage zones. A: I have no room and B: if there's a spill there's less drama as I dont have to worry about adverse chemical reactions. So, for example, the 5.1's are on the top shelf in alphabetical order (in the 5.1 cupboard) and the dilute soln'...