Australia's Science Forum

Hi gang, I've mentioned before about having term 2 off (LSL). Well, my HOD just told me that he and me will be doing the interviewing on Monday. I've never been on the other end, so am a bit anxious about the whole thing, and I need some help with relevant questions. There are two people. One is a t...

I am awaiting the outcome of this communicado with trepidation! I have just updated the full MSDS's for chemicals,(which I keep in the Prep room) and am in the process of doing the same with the mini MSDS's which I have in each lab, but if I have to do more on made up solutions ?*#!/? Plus I'm runni...

Hi all, Last year I updated all our MSDS. I have one copy in the Prep Room. In the labs (six), we keep a folder of mini MSDS's, and these need to be updated as well. Can anyone tell me an easy way to do this? Can they be purchased, or is it a case of downloading from Chemwatch, and photocopying. I'm...

Hi all,
Just thought I'd give this another try. I've had no luck so far in finding someone to replace me in term 2.
Ellice

Thanks everyone for your help. The notes from Tracey especially good.
Ellice

Hi Tracey,
Thank you. That would be great.
FAX 42200201
Attention Ellice Brown, Science Dept
Cheers,

Hi gang,
I had a set of sheets titled 'Cosmetic chemistry' with things like bath salts, bath bombs, etc, that kicked around here for ever, and now when I need them I can't find them! Does anyone have some recipes along these lines. Thanks for any help.
Ellice

I recently used Oxalic acid solution for a student with potassium permanganate stains on his shirt. Wash hands well as oxalic acid is poisonous.

Ellice

Hi Smee,
If you want an alternative to edible rocks, we've done the plaster of Paris one with
1 pebbles, gravel, sand
2 gravel
3 gravel, soil
4 gravel, sand.
do in a polystyrene cup, and when set, peel away to reveal your rocks.
Ellice

Hi Adriana,
I have sent you a PM.
Ellice.

Hi Smee,
We are doing new labs in the future, so I'm very interested in what you have. Are those trolleys between sink unit able to be wheeled away?
All looks lovely and shiny. Best way to keep it like that, is ban any pracs!!
Cheers, Ellice

I put ours in the Science fridge.(It's not a food fridge.)

Volcano Dissolve 3 teaspns Aluminium sulfate in 100mL water.(soln 1) Make another solution of 3 teaspns Bicarb in 60mL warm water, with 2 teaspns gelatine added. Stir in another 40ml warm water to dissolve gelatine. (soln 2). Put a conical flask (250mL) on a tray. Pour in soln 1. Quickly pour in sol...

Oh, and just a thought. When we do volcanoes, we use gelatine, bicarb and Aluminium sulfate. Good gush, nice and lumpy.

We do 'Rainbow Fizz' for Yr 7 Orientation. They love it.
You have five test tubes.

1 5mL water
2 squirt Universal indicator
3 5mL 5% Acetic acid
4 "

Fifth test tube has 1/2 teaspoon anhyd sodium carbonate to which you add in order test tubes 1-4.
Tip: do over a sink.

Hi Smee, We've just done this prac. With catalase and hydrogen peroxide this year. Every year we try something different!!! For the pH part, what I did this time was give them buffered enzyme solutions, and to do this I made up the solution of catalase (which is pH7), then to some I added drops of 0...

Just looked at the date on the cyclohexane.....1987!! And still works fine.

I have a book 'Use and care of Laboratory glassware', written in 1976 (there's a lot of old stuff around here!), and one of the recommendations: using a dropper, apply the following mixture (which is to seep between the cemented surfaces):- conc HCl 3mL, glycerol 5mL, chloral hydrate 10g. Let stand ...

I'm in Wollongong, and Spotlight would be the place I'd start for those sorts of things. They have a good craft section, as well as the materials.
Hope this helps.
Ellice.

Thanks for that info Lyn. I've sent off a query.
Yes, Ocker, it sounds like we are looking for the same thing. Hope I get there first!!
Cheers, Ellice