Australia's Science Forum

Here's a tricky one for all you brains out there.

How do you know when a certain prac is banned in schools. None of my teachers know how to get this information. I know how to get the banned chemical list but what about mixing chemicals for say "the vocano prac". The science faculty is divided over this one.

Any help would be appreciated.

Correct me if I'm wrong - didn't the volcano prac use red lead? If so, then it's an instant no-no. I'm sure the fun-suckers banned that one ages ago.

Cheers, K

Ammonium dichromate is orange in colour and when piled in a small mound and lit it burns and leaves a greenish ash. It is carcinogenic as is its residue.
I have used potassium permanagate (3tspns) on a bed of sand shaped into a mound with glycerol (3-5ml) poured into a shallow indentation made in the potassium permanagate. The entire experiment sits on a large coffee tin lid or metal tray and is set up outside away from the science building on a grassed/dirt area. The speed of the reaction depends on the age of the potassium permanganate. Move away once you have poured the glycerol. Keep students at a safe distance and away from the smoke generated.
Lyn.
P.S. This is a teacher dem only. Do not let the teacher do this in the classroom or in the fume cupboard. It takes ages to clean up the mess.

Hi Cindy,
I have a list of banned experiments which I was given about 15 years ago in NSW.
If you post your fax number I will fax it to you.
The ammonium dichromate volcano is a NO!.....as posted the product is carcinogenic.
Be very careful with the permanganate and glycerol.....incredible heat generated.....use small amounts.
As always risk assess...if risks too high don't do it.

Volcano
We have used Bicarb soda, red food colouring and vinegar in a coke bottle - I make a mound of mud and pebbles around the bottle to simulate a 'mountain'... put bicarb in bottle with red food colouring then pour in vinegar,,
BUT - have just found a great one on "about.chemistry" .. it looks like great fun - am going to test it out tomorrow in my prep room...
and whoever said our work wasnt fun!

Judy
I would love a copy of the list please. Fax is (03)62730940.

Thanks,

Pat

Thanks Judy received your fax. It was very helpful.

Judy may I have a copy of the list too? Fax No: (02) 6852 3768 Attn. Judy Gould Thank You.

The list was used at a private school I worked in 15 years ago and i have used it in the 4 schools i have worked.
Back then it was routine to do preparation of H2S,Cl2,NO2,SO2 in class so now they can use the fumehoods.
HOD can use discretion however the list was used so expts that used to be done by students became Demonstration only.
When the Chemicals in Schools Handbook came in NSW it clarified much of what is on the list.

Hi Mushroom,
How did the volcano trial go? What did you use?
Rosalie

Judy R wrote:Hi Cindy,
I have a list of banned experiments which I was given about 15 years ago in NSW.
If you post your fax number I will fax it to you.
The ammonium dichromate volcano is a NO!.....as posted the product is carcinogenic.
Be very careful with the permanganate and glycerol.....incredible heat generated.....use small amounts.
As always risk assess...if risks too high don't do it.

Hi Judy.
Browsing & saw this.I too would very much like a copy.Fax is ( 02 ) 4960 6690

PLease label : ATTENTION. ANDREA.

Many thanks & have a nice week.

Hi
I'd like a copy of the banned experiment list too ,please,
thankyou fax 6362 0776
Tania Rusden

Hi Judy,
Would you please fax a copy of the list to me also (02) 66432137.
Attn: Marrianne
Many thanks

HI Judy
Can i please have a copy as well?
Fax is 9550 9219
Attention to Celia

Thank you

Hi,
I would also like a copy if that's ok. fax 0740515754.

Thanks
Kerry

Can someone please fax me the no- no list of banned experiments as well. My fax no is 02 49 72 1378.
Thank you very much in advance.
Cathy

Can you please alos fax me on
0267462648
thanks heaps
kimmy

Hi Judy,
along with everyone else could I please have a copy of banned experiments
fax 43934155 attn Lisa
thanks Lisa

Thank you Judy from St Rita's for the quick response to my request for a copy of Banned Experiments.

You rock

Cathy

Could I please jump on the wagon and request a list of banned experiments also. It would be a great help. Fax no. 45796733 Att:Simone
Thank you Thank you Thank you