Search found 229 matches

by Anna Z
24 Jun 2024, 15:53
Forum: Biology, Physics...
Topic: Pluck practical Yr11
Replies: 3
Views: 963

Re: Pluck practical Yr11

We still do Plucks down in Vic.
by Anna Z
07 Jun 2024, 14:13
Forum: Miscellaneous
Topic: Lab upgrade ideas 2024
Replies: 3
Views: 850

Re: Lab upgrade ideas 2024

You could always go the open cupboard style with Gratnells trolleys for equipment, that way when not in use stashed under benches and easily moved to other laboratories when needed so you never have to double up on things.

How may labs do you have ?
by Anna Z
03 Jun 2024, 07:55
Forum: Chemistry and Labware - General
Topic: Cleaning stock bottles
Replies: 5
Views: 842

Re: Cleaning stock bottles

yep, go bin, not worth your effort
by Anna Z
31 May 2024, 15:52
Forum: Chemistry and Labware - General
Topic: Cleaning stock bottles
Replies: 5
Views: 842

Re: Cleaning stock bottles

We send out smaller bottles as they can come back contaminated, we know the sketchy classes :( If we sent the large one, then the whole lot would be cactus. Also the larger the bottle the more that gets wasted.
by Anna Z
28 May 2024, 11:33
Forum: Sourcing Materials & Eq Repairs
Topic: Glass tubing
Replies: 25
Views: 2283

Re: Glass tubing

Ahhh I see, we seal with blutak and would use a smaller temperature differential so I guess the shorter length works. Good idea sourcing more.
by Anna Z
28 May 2024, 07:45
Forum: Sourcing Materials & Eq Repairs
Topic: Glass tubing
Replies: 25
Views: 2283

Re: Glass tubing

elaruu wrote: 27 May 2024, 14:28
Anastasia wrote: 27 May 2024, 14:22 Try a Haines search:

Tubing Borosilicate Glass, 5mm x 0.5m pk/10
Thanks. Haines doesn't seem to have any with capillary size inner diameter. I think I want about 1mm internal diameter.
Glass pasture pipettes would do the job, snap off the end bit :)
by Anna Z
27 May 2024, 11:33
Forum: Sourcing Materials & Eq Repairs
Topic: Glass tubing
Replies: 25
Views: 2283

Re: Glass tubing

We use the glass pasture pipettes
by Anna Z
17 May 2024, 10:21
Forum: Safety with Chemicals
Topic: Chemical Storage
Replies: 14
Views: 11848

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...
by Anna Z
17 May 2024, 10:14
Forum: Safety with Chemicals
Topic: updating SDS's
Replies: 8
Views: 7201

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...
by Anna Z
17 May 2024, 10:11
Forum: Recipes and Pracs
Topic: Neutralisation of HCl
Replies: 6
Views: 937

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...
by Anna Z
22 Mar 2024, 13:25
Forum: Safety with Chemicals
Topic: Chemical Storage
Replies: 14
Views: 11848

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: 3061

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: 9778

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: 9778

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: 6
Views: 8606

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: 5615

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: 17861

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: 8618

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: 8618

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: 8618

Re: Welcome back everyone

I can find out... please stand by