Search found 219 matches

by Anna Z
22 Mar 2024, 13:25
Forum: Safety with Chemicals
Topic: Chemical Storage
Replies: 9
Views: 343

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...
by Anna Z
20 Mar 2024, 07:53
Forum: Sourcing Materials & Eq Repairs
Topic: Rubens Tube
Replies: 3
Views: 245

Re: Rubens Tube

Ciderhouse tech...... so much fun to play with
by Anna Z
19 Mar 2024, 08:29
Forum: Biology, Physics...
Topic: frozen hearts - help!
Replies: 10
Views: 460

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...
by Anna Z
15 Mar 2024, 11:16
Forum: Biology, Physics...
Topic: frozen hearts - help!
Replies: 10
Views: 460

Re: frozen hearts - help!

How did they go today ?
by Anna Z
13 Mar 2024, 14:05
Forum: Recipes and Pracs
Topic: Help please - High conc. CuSO4 / Cu(NO3)2 solutions
Replies: 5
Views: 500

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.
by Anna Z
07 Mar 2024, 13:07
Forum: Safety with Chemicals
Topic: Standard Operating Procedure (SOP) for removal of chemicals
Replies: 10
Views: 643

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.
by Anna Z
05 Mar 2024, 08:02
Forum: Biology, Physics...
Topic: rat dissection
Replies: 23
Views: 11902

Re: rat dissection

We get our rats from the pet store. Snake food, already dead and frozen, don't stress.
by Anna Z
29 Feb 2024, 11:34
Forum: Announcements
Topic: Welcome back everyone
Replies: 18
Views: 1864

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...
by Anna Z
27 Feb 2024, 08:57
Forum: Announcements
Topic: Welcome back everyone
Replies: 18
Views: 1864

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...
by Anna Z
23 Feb 2024, 10:37
Forum: Announcements
Topic: Welcome back everyone
Replies: 18
Views: 1864

Re: Welcome back everyone

I can find out... please stand by
by Anna Z
23 Feb 2024, 07:47
Forum: Announcements
Topic: Welcome back everyone
Replies: 18
Views: 1864

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.
by Anna Z
23 Feb 2024, 07:45
Forum: Sourcing Materials & Eq Repairs
Topic: lab furniture
Replies: 3
Views: 562

Re: lab furniture

I'd chat to Westlab first then go from there
by Anna Z
23 Feb 2024, 07:43
Forum: Biology, Physics...
Topic: Biology
Replies: 4
Views: 404

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...
by Anna Z
16 Feb 2024, 08:58
Forum: Announcements
Topic: Welcome back everyone
Replies: 18
Views: 1864

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 :)
by Anna Z
20 Nov 2023, 12:07
Forum: Biology, Physics...
Topic: testing for microbes
Replies: 4
Views: 1150

Re: testing for microbes

I'd be going with what @melsid said... perfect
by Anna Z
14 Nov 2023, 12:59
Forum: Safety with Chemicals
Topic: nickel sulfate
Replies: 11
Views: 4584

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 ...
by Anna Z
09 Nov 2023, 08:15
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 5562

Re: Free elements sets for schools

You're a legend Stuart, thanks so much for your passion
by Anna Z
06 Nov 2023, 10:06
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 5562

Re: Free elements sets for schools

Since these element sets are my babies, let me put up a few quick answers to some of the queries here. 1. Firstly, PLEASE look at the website (elementsets.net), and in particular, the Teachers' Notes available there (updated recently; these are different to the booklet contained in the set). These ...
by Anna Z
03 Nov 2023, 08:10
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 5562

Re: Free elements sets for schools

I did have a thought afterwards. We put some mercury switches into these containers - tiny amount of mercury (so tiny, I couldn't really see the point). I decided to glue the lids shut and I had the casual use a really small dot of superglue to do so. That was twelve months ago and they are still f...
by Anna Z
03 Nov 2023, 08:08
Forum: Chemistry and Labware - General
Topic: White crystal around sodium hydroxide solution bottles
Replies: 14
Views: 4319

Re: White crystal around sodium hydroxide solution bottles

NicD wrote: 03 Nov 2023, 07:54 Is it safe to rinse the droppers in 1mol hcl to clean out the NaOH, and still use them in the NaOH. I think that they might be some wax in the droppers and bottles, i have tried washing in water to no avail
Yep, go for it