Search found 276 matches

by Kathryn
19 Aug 2019, 12:40
Forum: Safety with Chemicals
Topic: Disposal of Sodium Thiosulfate?
Replies: 14
Views: 1543

Re: Disposal of Sodium Thiosulfate?

I think part of the trouble with Chemwatch is they are writing SDS for large quantities as in manufacturing or industry. Using hundreds of kg's is quite different from the amounts that we use in schools.
Kathryn
by Kathryn
30 Jul 2019, 09:45
Forum: Announcements
Topic: ASET conference
Replies: 11
Views: 1570

Re: ASET conference

Any update on when registrations will open?
I'm keen :crazy:
Kathryn
by Kathryn
24 Jun 2019, 09:10
Forum: Safety with Chemicals
Topic: Flammable cupboards
Replies: 25
Views: 1898

Re: Flammable cupboards

I purchased one from Storemaster a couple of years ago. Australian made. Very happy with the service and the product.
Kathryn
by Kathryn
18 Jun 2019, 13:04
Forum: Safety with Chemicals
Topic: propylene glycol
Replies: 9
Views: 505

propylene glycol

Hi everyone The old CSIS has propylene glycol as orange and yet Risk Assess has it as Blue. That's a huge difference. It does not have any warnings under GHS so probably is ok at a lower code. But so far with any differences between CSIS and Risk Assess I have gone with the higher grading as I am no...
by Kathryn
30 May 2019, 12:01
Forum: The Polling Booth
Topic: Topic Suggestions for Future PD Sessions
Replies: 12
Views: 1603

Re: Topic Suggestions for Future PD Sessions

I'd be interested on something on rocks and learning about the geology of the region. Also ideas on how to make rocks / earth science more interesting as the teachers mostly groan when they are doing that subject. Also, physics experiments - I have done workshops before but it is the topic I struggl...
by Kathryn
09 May 2019, 12:29
Forum: Sourcing Materials & Eq Repairs
Topic: dishwasher rack
Replies: 11
Views: 949

Re: dishwasher rack

Does that test tube rack work for things like measuring cylinders, conical flasks, beakers etc? I am finding that the spikes on my dishwasher are so short that most things wobble around hitting each other. I do already have one of the test tube baskets.
by Kathryn
07 May 2019, 14:42
Forum: Sourcing Materials & Eq Repairs
Topic: dishwasher rack
Replies: 11
Views: 949

dishwasher rack

Hi all

We have an ordinary household dishwasher. It does not hold most lab glassware securely. Just wondering if anyone has bought an additional basket eg something made for glasses, and if so does it work well?
Kathryn :-)
by Kathryn
09 Apr 2019, 11:21
Forum: Sourcing Materials & Eq Repairs
Topic: pressure cooker
Replies: 3
Views: 545

Re: pressure cooker

Even the cheapest autoclaves are way beyond our budget atm. Currently we just toss used agar plates but now that they are starting to use far more, I would prefer to have better practice. Any pressure cooker will be better than nothing.
by Kathryn
08 Apr 2019, 10:18
Forum: Sourcing Materials & Eq Repairs
Topic: pressure cooker
Replies: 3
Views: 545

pressure cooker

Hi everyone,
Pressure cookers were discussed a few years back but I am wondering if anyone has bought one recently for sterilizing agar plates? If so, what brand have you bought and is it good?

Thanks in advance

Kathryn :)
by Kathryn
06 Mar 2019, 10:18
Forum: Recipes and Pracs
Topic: Osmosis and diffusion
Replies: 23
Views: 2448

Re: Osmosis and diffusion

Good morning. My teacher has always asked for litres of iodine solution to pour straight into the beakers containing the starch dialysis tubing. Of course when I make up the iodine as per the recipe it is far too dark so then have to dilute. Should she actually just be adding a few drops of iodine f...
by Kathryn
13 Feb 2019, 10:15
Forum: Safety with Chemicals
Topic: storage of corrosives
Replies: 3
Views: 610

storage of corrosives

Hi all I have one cabinet to store corrosives. I attempt to separate by shelves the acids and bases. I also have iodine in there (double bottled in sealed plastic bags). However I am still finding that all my labels get stained brown - they would become unreadable if I left them. Is it the iodine ca...
by Kathryn
30 Jan 2019, 10:48
Forum: Sourcing Materials & Eq Repairs
Topic: Laboratory Equipment poster
Replies: 1
Views: 594

Laboratory Equipment poster

Happy New Year Everyone

Does anyone have a supplier of a good poster of basic laboratory equipment - suitable for Yr 7's? I have found a good one at Mentone but they are charging as much for the postage as for the poster itself, so I am hoping to find a cheaper source.

Kathryn
by Kathryn
12 Nov 2018, 11:23
Forum: Chemistry and Labware - General
Topic: Water purifier - deioniser etc
Replies: 22
Views: 3349

Re: Water purifier - deioniser etc

Thanks for that - that website explains it well.
by Kathryn
01 Nov 2018, 11:34
Forum: Chemistry and Labware - General
Topic: Water purifier - deioniser etc
Replies: 22
Views: 3349

Re: Water purifier - deioniser etc

Could you let me know where you got your Air Still from?
Thanks