Australia's Science Forum

Hi Jillian I bought some last year from Science Supply Australia. The catalog number was 25 85134 they were $40.75 each. Had to buy the guko rubbers that go with them as well and they were $3.45 Catalog number 29 20232. Bought the venturi vacuum pumps at $24.00 each. So it was an expensive exercise....

Hi Everyone I've been asked to sort out the chemicals stored at art department. They don't really have alot of stuff that is not classified as non hazardous but there are many spray cans of fixative and spray adhesive. There are also small quantities of flammable liquids like some solvents. At prese...

Hi Everyone. Does anyone out there use a Wilson's cloud chamber. It says to use it with Thorium Oxide which is a banned chemical. We've tried using it with our radioactive sources and ethanol. It isn't working very well. I've been putting in the source and ethanol then sucking out the air with the b...

I don't know which experiment you are talking about. I just made a rainbow in measuring cylinder by pouring saturated sodium carbonate slowly into a 100mL measuring cylinder that was filled with 0.1M HCl and universal indicator. Its to show density and diffusion.

Hi Nahrein For the gel we use 4g of agarose into 500mL of room temperature working buffer solution and stir for 2 mins in 1L beaker on electric stirrer. Then transfer to 2 500mL conical flasks and microwave for 1 min on high then swirl, repeat the 30 seconds on medium power, rest till 60 degrees. Po...

Hi Rosalie
I am also just starting out on Scilist. I can't help with your question, sorry, but I'm wondering if anyone out there knows how to go about importing my equipment list into the scilist programme, I've followed their instructions but haven't had any luck.

THANK YOU EVERYONE. Loving you all!

Hi again
Can anyone tell me please the difference between Chemwatch and Chemffx?
Also is there an updated CSIS available online to non DET schools.
Krysia

Hi Everyone
I hope this doesn't make me sound dumb but alot of my stainless steel spatulas/spoons are rusty and horrible looking. Just wondering if there is something I can do to make them sparkle again?
Thanks
Krysia

Last week I was getting something out of the corrosives cupboard and noticed the white powder is back coating the bottom of the cupboard. I picked up one of the smaller botttles of conc. sulfuric. As i was squating and my knees hurt I didn't initially think much of the pin prick sensation on my leg....

We substitute potassium iodide for manganese dioxide and that works.

So I did heat it gently in the microwave for only 30 seconds and it was 56 degrees when I got it out.There really wasn't much of a difference between the hot and cold. The cold one as expected kept producing foam longer. We did this a rate of reaction prac where the variable was temperature so we go...

Thanks Rosalie, I was in a hurry so popped it in the microwave for 40 seconds, worked well.

HI
I'm about to do the elephants toothpaste prac, has anyone done this heating the perioxide in the microwave first so to compare it with cold perioxide. If you have how long did you heat it for and how much. Please and thank you

hi cool guy
this site is the best for all sorts of stuff, help with equipment, chemicals, pracs and even has a great jokes page.
enjoy

Mine too Dime. I keep thinking how far helpful does a lab assistant have to be? Turns out you can get them pretty cheaply of ebay. Good enough for what we want. Roughly $30.00. He is going to just demonstrate on tubing how it works.

Hi Everyone We are in the middle of preparing our budget for next year and one of the teachers wants me to price an endoscope. WHATTTTTTTTTTTTTTT. What the hell is he intending on doing with that. Does anyone else have one in their school. Do you know where I may be able to get a price for one? than...

We have a fibreoptic spectrometer and it is fantastic. Was very expensive roughly $2000. Gets used a fair bit.

http://www.deir.qld.gov.au/workplace/su ... compatible
this maybe the table you are thinking of Rosalie.
Hope it helps
Krysia

Absolute no no here. What do you do if one of the agar plates lids cracks etc ? I do believe that isn"t allowed anymore.