Search found 2625 matches
- 08 Dec 2022, 13:05
- Forum: Chemistry and Labware - General
- Topic: White crystal around sodium hydroxide solution bottles
- Replies: 14
- Views: 8490
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: 9656
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: 9656
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: 9656
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: 9656
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: 9656
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: 9656
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: 8527
Re: pH Charts
well done Bigmack, thank you
- 01 Nov 2022, 14:42
- Forum: Chemistry and Labware - General
- Topic: pH Charts
- Replies: 25
- Views: 8527
Re: pH Charts
You work too hard, Bigmack, but we love you
- 31 Oct 2022, 13:35
- Forum: Chemistry and Labware - General
- Topic: pH Charts
- Replies: 25
- Views: 8527
Re: pH Charts
alice.elford@westlab.com.au
Alice may be able to help you.
Alice may be able to help you.
- 31 Oct 2022, 13:34
- Forum: Chemistry and Labware - General
- Topic: pH Charts
- Replies: 25
- Views: 8527
Re: pH Charts
Bigmack Try westlab,perhaps call them and ask if they can down load it?? Well done you
- 28 Oct 2022, 09:05
- Forum: Recipes and Pracs
- Topic: Preserved specimens.
- Replies: 43
- Views: 23030
Re: Preserved specimens.
WOW Check with Principal he/she may already have a licence tied up with the school?
- 28 Oct 2022, 07:58
- Forum: Safety with Chemicals
- Topic: waste bottle labels
- Replies: 18
- Views: 8516
Re: waste bottle labels
Where did you find this out? Are you DoE school? I was having a look at CSIS and I can't find anything that says you can store all metals together (other than heavy metals) but things like silver, copper, lead were separate. And we have SO many waste bottles that if what your saying is correct, wil...
- 27 Oct 2022, 15:26
- Forum: Recipes and Pracs
- Topic: Preserved specimens.
- Replies: 43
- Views: 23030
Re: Preserving Animals
Also do a search for Preserved Animals
- 27 Oct 2022, 15:22
- Forum: Recipes and Pracs
- Topic: Preserved specimens.
- Replies: 43
- Views: 23030
Re: Preserving Animals
If you are a DoE school, as of 5 years ago we could. So unless the CSIS has changed, No as of 5 years ago NO Licence is needed.
- 24 Oct 2022, 09:26
- Forum: Announcements
- Topic: Banned from 1 NOV
- Replies: 43
- Views: 15231
Re: Banned from 1 NOV
I look forward to hearing your comments, regarding Higher up,
- 21 Oct 2022, 12:39
- Forum: Forum Support Desk
- Topic: How to post a picture on Chemtalk
- Replies: 8
- Views: 15996
Re: How to post a picture on Chemtalk
Well done Bigmack thank you
- 20 Oct 2022, 12:48
- Forum: Sourcing Materials & Eq Repairs
- Topic: swan neck tubes
- Replies: 25
- Views: 11862
Re: swan neck tubes
Thank you Remlap12 it's so nice to be thanked, so many do not do this.
- 18 Oct 2022, 12:01
- Forum: Sourcing Materials & Eq Repairs
- Topic: swan neck tubes
- Replies: 25
- Views: 11862
Re: swan neck tubes
I have now merge these together for every one
- 14 Oct 2022, 12:16
- Forum: Sourcing Materials & Eq Repairs
- Topic: spectrum tubes
- Replies: 9
- Views: 7361
Re: spectrum tubes
Well done Bigmack you did it again. Thank you