Australia's Science Forum

Hi, my teacher wants to do this prac. I haven't got the recipe ..... can anyone help please?

Thanks!

Kel

Laughing at Jody..............

Yep I agree .... I just read it recently & I've had a bottle of cyclohexene for longer than that too!

I'll try & find it again...........

Congrats Labbie!

Hope you enjoy the day & I'm keeping my fingers crossed for you!!

Kel

I read somewhere that most schools (perhaps not poor Dept schools as they won't have much choice) won't want to employ them as the course isn't long enough to really develop good teachers..... just a thought - don't shoot the messenger!

Thanks guys! Very timely for me too! Did you know that cyclohexene has a shelf life of 6 months!?!

I am hoping to provide one day next year for either networking or with workshops at Wodonga. Anyone interested?

What topics / workshops would you be interested in??

Cheers Kel

Thanks guys - knew I could count on you

Hi guys, I have a Y12 chem prac using a variable resistor. We don't have any (that I can find!) but to order one I can't find them. Are they the same as potentiometers??

Cheers Kel

Hey Fiona, maybe we should try & work out a cost of the water & wear & tear on our washing machine for doing it?

I would love to bleach etc... but it's all I can manage to just get the damn things washed every time!

How tragic... here I am on a Saturday afternoon getting my fix of Chemtalk!! :crazy: Anyway, I take all ours home & wash them at the end of each semester or as they need. The school pays for the washing powder. I hate doing it, the lugging to the car, the lugging out of the car & up my steps...

I'm sure it's just the solidified fat from a cow... but you can't substitute butter - it doesn't have a high enough melting temperature. I wonder if suet or lard would do? But I'm with Rowy... phewwwwwwww! :boring: So I reckon go for vegie or some other sort of plant oil too. Hopefully it would work?!

doesn't the oxygen one warn against breathing it???

And that's why we don't do human blood anything at school!!

How awful for those poor kids.

Yes, congrats Satu & I hope you enjoy the time with your new bub (& without manic teachers & all that washing up - well I suppose you'll still have washing - just a different sort!!!!)

Wow great job Narelle - looks so simple!

Hopefully I'll remember next time it happens to us!

The problem is that they are quoted different agencies - NOHSC, Worksafe... they are all supposed to work together.

I always use the manufacturers MSDS & then check against ChemWatch & take the most paranoid!

No worries Rosalie - thanks for trying!

Been all organised now - Thank you Cecmel & Lisa!

Ahhh detection tubes - to detect various gases. Like a home-made breathalyser... Glass tube filled with non-indicating silica gel (soaked in the chemical you want the gas to react with) & then glass wool tucked at both ends to keep it all packed in nicely. You whoosh some ethanol in a conical fl...

Here's another from me today.... must be a record or something! I would really, really appreciate some help with a uni assignment. I have to write up a RA for the Synthesis of aspirin prac using salicyclic acid, acid anhydride & H2SO4. I think I've got most of the issues but I would love it if s...