Australia's Science Forum

We're using Iron(III) nitrate and Potassium thiocyanate

We always use the yeast-H2O2-detergent one as it's safer for everyone and clean up is easier for me.
What is the student going to study via this experiment? If it was one of ours, I'd probably accuse him/her of a non serious attempt!!

No, mine looks the same.

All the best to you, Julie.
Cheers

Any health food shop should stock it, and it's pretty cheap.

We use a little analogue alarm clock and it works well.

Are you logged in?

All the very best, Narelle.
Cheers

or sand and (rusted) iron filings??

I agree....RiskAssess labelling system is fantastic.

Hi all,
We need to get aprons or lab coats for our students and, as we have limited space for hanging up, I'm in favour of aprons. This leads to the question, should we buy cotton, poly cotton or rubber aprons??
What do y'all use?
Any thoughts gratefully accepted.
Cheers

Hi Richard
I've had a chat to ChemWatch and it's being sorted.......

20 more in mine as of this morning.....

I'm guessing that's not Australian; dated 2002, but we've never had those colour codes.
But, as you say Marg, a good place to start!

Just checked mine - I've never heard of half the stuff that's now living in my corrosives cabinet!!!!!
Like you, Richard, I'm too scared to look much further just now......

Seems a bit like re-inventing the wheel when we pay annual subscriptions to ChemWatch and RiskAssess for this very information?

We use 0.1M ammonium molybdate for that....works OK.

So, heaps of notice, then!
We use indicator sticks for water testing these days; they're easy to use and accurate enough....from SBS.

Yes, they need to be ultra fresh....we do this and it works really well (not in the numbers you're talking, however!).
Maybe dragoon some helpers?
Cheers

http://file.southernbiological.com/Asse ... oSheet.pdf

https://www.youtube.com/watch?v=PDAt3KSQvFA

Not exactly what you were looking for, but this is one of the investigations we do using trypsin....works really well and it's dead simple.

Cheers