Search found 222 matches
- 17 May 2024, 10:21
- Forum: Safety with Chemicals
- Topic: Chemical Storage
- Replies: 14
- Views: 9778
Re: Chemical Storage
My register/stocktaking document is off the Vic ed dept site. It is in alphabetical order, it tells you chemical/substance, room for amount, container size, strength, hazardous substance, dangerous goods, dangerous goods class with description, sub catergory and packaging group. eg Acetic acid glac...
- 17 May 2024, 10:14
- Forum: Safety with Chemicals
- Topic: updating SDS's
- Replies: 8
- Views: 6008
Re: updating SDS's
Going through ours ATM There are Hydrogen Peroxide ones for 3% ,6%,9% and 35% . (LOL all from Chemwatch of course ) I see they are stored in the fridge . Now it seems that the lower strength ones are in Risk assess labeled bottles and presumably made from diluting down the 35% solution . I was unde...
- 17 May 2024, 10:11
- Forum: Recipes and Pracs
- Topic: Neutralisation of HCl
- Replies: 6
- Views: 253
Re: Neutralisation of HCl
As a basic rule , if you have a litre of 1M HCl you can pretty well neutralise most of it with 1litre of 1M NaOH . If you have 1litre of H2SO4 1M it will take 2litres of 1M NaOH or 1Litre if 2M NaOH .(because Sulphuric has twice as many Hydrogens ) But …….. iff’n you are going to sit there and test...
- 22 Mar 2024, 13:25
- Forum: Safety with Chemicals
- Topic: Chemical Storage
- Replies: 14
- Views: 9778
Re: Chemical Storage
wow... just checked out the Flinn science thing you posted... full on. Basically we have ours in their DG cabinets and segregated where needed. All the rest that are class 9 or no class are done alphabetical. Powders and dry chemicals on higher shelves, all liquids down lower and in bunding incase o...
- 20 Mar 2024, 07:53
- Forum: Sourcing Materials & Eq Repairs
- Topic: Rubens Tube
- Replies: 3
- Views: 2556
Re: Rubens Tube
Ciderhouse tech...... so much fun to play with
- 19 Mar 2024, 08:29
- Forum: Biology, Physics...
- Topic: frozen hearts - help!
- Replies: 10
- Views: 8212
Re: frozen hearts - help!
Soak them in a bucket with nappysan overnight at least, then throw in the machine. What comes out comes out and what doesn't - depends how fussy your school is. President lab coats sell theirs for a pretty good price and great quality if you need to replace. These ones are brand new! This was the f...
- 15 Mar 2024, 11:16
- Forum: Biology, Physics...
- Topic: frozen hearts - help!
- Replies: 10
- Views: 8212
Re: frozen hearts - help!
How did they go today ?
- 13 Mar 2024, 14:05
- Forum: Recipes and Pracs
- Topic: Help please - High conc. CuSO4 / Cu(NO3)2 solutions
- Replies: 6
- Views: 7354
Re: Help please - High conc. CuSO4 / Cu(NO3)2 solutions
We use 1M for the Gal cell prac, works a treat, any lower and sometimes it's hard to see a change unless using digital multimeters.
- 07 Mar 2024, 13:07
- Forum: Safety with Chemicals
- Topic: Standard Operating Procedure (SOP) for removal of chemicals
- Replies: 10
- Views: 4592
Re: Standard Operating Procedure (SOP) for removal of chemicals
Not sure about hard and fast rules....but we have removed all mercury from school. It came in about 10 years ago that mercury was being banned in research laboratories. Follow their lead, chuck it all. There is no reason you need it, so reduce your risks.
- 05 Mar 2024, 08:02
- Forum: Biology, Physics...
- Topic: rat dissection
- Replies: 23
- Views: 16257
Re: rat dissection
We get our rats from the pet store. Snake food, already dead and frozen, don't stress.
- 29 Feb 2024, 11:34
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6855
Re: Welcome back everyone
Ahh yes I know exactly the ones... the other one I know that broke was just your standard old Winchester. I think it stored acetonitrile before can't comment on age though. Personally I think someone was cleaning in the fumehood a little to hard and knocked the bottle against something, then a littl...
- 27 Feb 2024, 08:57
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6855
Re: Welcome back everyone
That's 2 winchesters I have heard this happening to in the last 3 months... never in my life as a lab tech has that happened before. I would suggest everyone check their old bottles. Maybe they are not as good as they used to be. I'm also going to be checking each new bottle before it gets put into...
- 23 Feb 2024, 10:37
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6855
Re: Welcome back everyone
I can find out... please stand by
- 23 Feb 2024, 07:47
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6855
Re: Welcome back everyone
That's 2 winchesters I have heard this happening to in the last 3 months... never in my life as a lab tech has that happened before. I would suggest everyone check their old bottles. Maybe they are not as good as they used to be.
- 23 Feb 2024, 07:45
- Forum: Sourcing Materials & Eq Repairs
- Topic: lab furniture
- Replies: 3
- Views: 2838
Re: lab furniture
I'd chat to Westlab first then go from there
- 23 Feb 2024, 07:43
- Forum: Biology, Physics...
- Topic: Biology
- Replies: 4
- Views: 2794
Re: Biology
We use a laminated cards with little circle on it that we made up. We also use food dye with a little bit of Glycerol in it so it doesn't run all over the place with surface tension. You can have a few different cards with different volumes. We also have a lot of old well plates that we roll out and...
- 16 Feb 2024, 08:58
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6855
Re: Welcome back everyone
It is quiet here I think that means we are all organised and haven't forgotten how we do our roles after such a long break
- 20 Nov 2023, 12:07
- Forum: Biology, Physics...
- Topic: testing for microbes
- Replies: 4
- Views: 5489
Re: testing for microbes
I'd be going with what @melsid said... perfect
- 14 Nov 2023, 12:59
- Forum: Safety with Chemicals
- Topic: nickel sulfate
- Replies: 11
- Views: 14037
Re: nickel sulfate
We are actually in the process of removing it from the school, have found other reagents and/or pracs that demonstrate the same thing. Nickel ... nasty Hazardous to the Aquatic Environment - Acute Hazard: Category 1 Hazardous to the Aquatic Environment - Long-Term Hazard: Category 1 Carcinogenicity ...
- 09 Nov 2023, 08:15
- Forum: Chemistry and Labware - General
- Topic: Free elements sets for schools
- Replies: 30
- Views: 19128
Re: Free elements sets for schools
You're a legend Stuart, thanks so much for your passion