Search found 2621 matches

by Labbie
13 Feb 2023, 12:05
Forum: Sourcing Materials & Eq Repairs
Topic: Volumetric flasks
Replies: 10
Views: 3622

Re: Volumetric flasks

What is the difference between Class A and B volumetric flask? The main difference between Class A and Class B glassware is their manufacturing materials. Class A is made of strong borosilicate material, while Class B is made from soda-lime material, which makes Class A glassware superior for chemic...
by Labbie
13 Feb 2023, 10:53
Forum: Miscellaneous
Topic: Photographic Chemicals
Replies: 5
Views: 1139

Re: Photographic Chemicals

Guess it did;nt come with a SDS? Phone the people she brought it from.
by Labbie
06 Feb 2023, 12:26
Forum: Chemistry and Labware - General
Topic: Button Cell Batteries NEW Regulation 2022
Replies: 4
Views: 1390

Re: Equipment - button batteries

What is the button battery law 2022? From 22 June 2022, businesses that supply button or coin batteries, or products containing button or coin batteries, in Australia must comply with these standards. The new safety and information standards require manufacturers to: create secure compartments so ch...
by Labbie
03 Feb 2023, 14:08
Forum: Safety with Chemicals
Topic: methylene blue
Replies: 3
Views: 1235

Re: methylene blue

I would put that Ethanol was used on the label. to cover your back, if nothing else.
by Labbie
03 Feb 2023, 12:31
Forum: Safety with Chemicals
Topic: Sodium Metal
Replies: 5
Views: 1330

Re: Sodium Metal

The CSIS is down right now, the online one that is. So I can not check.
by Labbie
02 Feb 2023, 14:26
Forum: Recipes and Pracs
Topic: Tea Bag Prac.... need help
Replies: 8
Views: 1541

Re: Tea Bag Prac.... need help

Thank you for tea, ha ha
by Labbie
02 Feb 2023, 13:16
Forum: Recipes and Pracs
Topic: Tea Bag Prac.... need help
Replies: 8
Views: 1541

Re: Tea Bag Prac.... need help

Cup of tea coming up for me Bigmack?
by Labbie
02 Feb 2023, 12:36
Forum: Recipes and Pracs
Topic: Tea Bag Prac.... need help
Replies: 8
Views: 1541

Re: Tea Bag Prac.... need help

Just checked my cupboard, and Tetley extra strong, has staples, I purchased them on Wednesday this week.
by Labbie
01 Feb 2023, 11:27
Forum: Sourcing Materials & Eq Repairs
Topic: Repairs to Science equipment
Replies: 37
Views: 36405

Re: Repairs to Science equipment

3 Ways to Clean a Microscope - wikiHowhttps://www.wikihow.com › Seems quite good.
by Labbie
08 Dec 2022, 13:12
Forum: Chemistry and Labware - General
Topic: White crystal around sodium hydroxide solution bottles
Replies: 14
Views: 4408

Re: White crystal around sodium hydroxide solution bottles

Kassh see how the plastic lids are fine but the glass one is not. Removed the glass one and go for a plastic lid.
by Labbie
08 Dec 2022, 13:11
Forum: Chemistry and Labware - General
Topic: White crystal around sodium hydroxide solution bottles
Replies: 14
Views: 4408

Re: White crystal around sodium hydroxide solution bottles

Sodium hydroxide stock solutions should be stored in plastic containers. Glass containers should be completely avoided in the preparation and storage of sodium hydroxide solutions.
by Labbie
08 Dec 2022, 13:05
Forum: Chemistry and Labware - General
Topic: White crystal around sodium hydroxide solution bottles
Replies: 14
Views: 4408

Re: White crystal around sodium hydroxide solution bottles

Sodium hydroxide slowly reacts with glass to form sodium silicate, so glass joints and stopcocks exposed to NaOH have a tendency to "freeze". Flasks and glass-lined chemical reactors are damaged by long exposure to hot sodium hydroxide, and the glass becomes frosted. It should have a plast...
by Labbie
01 Dec 2022, 11:00
Forum: Safety with Chemicals
Topic: Experiment gone wrong
Replies: 28
Views: 4188

Re: Experiment gone wrong

bigmack wrote: 01 Dec 2022, 08:37 Just got a notification from DET that Black snake prac is not permitted pending further investigation .

https://education.nsw.gov.au/noticeboar ... in-schools
Not really surprised.
by Labbie
22 Nov 2022, 12:11
Forum: Safety with Chemicals
Topic: Experiment gone wrong
Replies: 28
Views: 4188

Re: Experiment gone wrong

Yes Rosalie it was Metho, it's only a primary school so they would NOT have had sulfuric Acid. Did it outside in strong wind's.
by Labbie
22 Nov 2022, 11:31
Forum: Safety with Chemicals
Topic: Experiment gone wrong
Replies: 28
Views: 4188

Re: Experiment gone wrong

So true MTG so sad.
by Labbie
22 Nov 2022, 09:31
Forum: Safety with Chemicals
Topic: Experiment gone wrong
Replies: 28
Views: 4188

Re: Experiment gone wrong

Three of the four children who remained in hospital after an explosion at a Northern Beaches primary school yesterday have now been discharged.
One student, being treated at the Children's Hospital at Westmead, is now stable.
by Labbie
22 Nov 2022, 08:39
Forum: Safety with Chemicals
Topic: Experiment gone wrong
Replies: 28
Views: 4188

Re: Experiment gone wrong

But being a primary school, My guess would be they do not RA at all. Think you are right teacher in big trouble.
by Labbie
21 Nov 2022, 14:26
Forum: Safety with Chemicals
Topic: Experiment gone wrong
Replies: 28
Views: 4188

Experiment gone wrong

Two children are in a serious condition and eight others are injured after they suffered burns when a classroom experiment went wrong at a primary school on Sydney’s northern beaches. Police and paramedics were called to Manly West Public School on Griffith Street in Balgowlah following reports stud...
by Labbie
03 Nov 2022, 16:28
Forum: Chemistry and Labware - General
Topic: pH Charts
Replies: 25
Views: 3235

Re: pH Charts

well done Bigmack, thank you
by Labbie
01 Nov 2022, 14:42
Forum: Chemistry and Labware - General
Topic: pH Charts
Replies: 25
Views: 3235

Re: pH Charts

You work too hard, Bigmack, but we love you