Search found 2621 matches
- 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...
- 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.
- 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...
- 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.
- 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.
- 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
- 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?
- 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.
- 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.
- 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.
- 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.
- 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...
- 01 Dec 2022, 11:00
- Forum: Safety with Chemicals
- Topic: Experiment gone wrong
- Replies: 28
- Views: 4188
Re: Experiment gone wrong
Not really surprised.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
- 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.
- 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.
- 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.
One student, being treated at the Children's Hospital at Westmead, is now stable.
- 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.
- 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...
- 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
- 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