Search found 9 matches

by KylaW
26 Jun 2019, 10:20
Forum: Biology, Physics...
Topic: Phenolphthalein Agar
Replies: 139
Views: 13038

Re: Phenolphthalein Agar

Hi Lyn, my phenolpthalein agar didn't work this year either. Two failed batches. The third time I boiled it for a few minutes (I've always just added boiling water), and used bromothymol blue instead. It set great, plus the agar turns from blue to yellow (rather than clear) which makes the diffusion...
by KylaW
03 May 2019, 13:53
Forum: Chemistry and Labware - General
Topic: chipped test tubes
Replies: 13
Views: 1339

Re: chipped test tubes

Thanks Lyn! I had a chance to try it today, as I had to make some swan necks anyway. The Meker burner is definitely hotter and great for smoothing off the sharp ends of the tubing. Without a flame spreader however, I found it a bit hard to heat up a large enough portion of the tubing at once. So my ...
by KylaW
03 May 2019, 09:02
Forum: Chemistry and Labware - General
Topic: chipped test tubes
Replies: 13
Views: 1339

Re: chipped test tubes

Hi Lyn,

I use a regular bunsen & flame spreader, but it can take a while to heat the glass tubing up enough to manipulate it. I have a Meker burner in the cupboard and am curious to try it. Is it still best to use a flame spreader with it and if so, where would I buy one to fit?

Thanks,
Kyla
by KylaW
03 Apr 2019, 08:01
Forum: Sourcing Materials & Eq Repairs
Topic: Dynamic trolleys
Replies: 3
Views: 819

Re: Dynamic trolleys

Hi Helen, Currently wondering the same thing! We have some older metal ones. The wheels constantly fall off and bits break but they are easily repaired, providing you have/can make spare parts. We also have some of the newer plastic red & grey ones. They are much sturdier, but when the internal firi...
by KylaW
30 Jan 2019, 07:50
Forum: Recipes and Pracs
Topic: Open Day Ideas
Replies: 66
Views: 6466

Re: Open Day Ideas

Hi Merilyn,

Not to be a pain, but I'd also love a copy of this book if you wouldn't mind!
kwoznyi@parra.catholic.edu.au

Thanks a bunch.
by KylaW
22 Nov 2018, 16:36
Forum: Recipes and Pracs
Topic: Blue Bottle Experiment
Replies: 6
Views: 1104

Re: Blue Bottle Experiment

Thanks! Next time I'll try that.
by KylaW
21 Nov 2018, 08:05
Forum: Recipes and Pracs
Topic: Blue Bottle Experiment
Replies: 6
Views: 1104

Blue Bottle Experiment

Hi,

Just wondering if anyone else has had any problems with Blue Bottles turning orange after a few hours?
Is there a way to prevent it, or is it just a matter of making up fresh every time?

Thanks,
Kyla
by KylaW
01 Dec 2017, 12:51
Forum: Free classifieds - 4 sale/swap/wanted/giveaway
Topic: Free Science Focus 2 Books
Replies: 0
Views: 426

Free Science Focus 2 Books

Xavier College in Llandilo has around 50 used Science Focus 2 books that we're getting rid of.

If anyone is interested just email me at kwoznyi@parra.catholic.edu.au

Cheers,
Kyla
by KylaW
29 Aug 2017, 10:57
Forum: Safety with Chemicals
Topic: Length of Chemical Storage
Replies: 7
Views: 835

Length of Chemical Storage

Hi, I am in the process of doing an overhaul of the chemical management at the school I have just began working at. A lot of chemicals here backdate to the 2000s, some older than 15 years. Coming from an analytical background my initial thought was to dispose of anything older than a few years. But ...