Search found 600 matches
- 08 Jun 2023, 13:04
- Forum: Sourcing Materials & Eq Repairs
- Topic: Bromine
- Replies: 9
- Views: 5244
Re: Bromine
I'd be reluctant to have bromine around - bromine water is horrible enough. Me too For those who refuse to make up bromine water from scratch. (had a bad accident). Georgia Deretic who co-wrote Foschem Senior Chemistry gave me a substitute that works just as well and less dangerous. :w00t: Bromine ...
- 08 Jun 2023, 08:39
- Forum: Safety with Chemicals
- Topic: Radioactive isotopes
- Replies: 17
- Views: 9683
Re: Radioactive isotopes
Bottle of Black Douglas would be lovely lol
- 07 Jun 2023, 14:42
- Forum: Safety with Chemicals
- Topic: Radioactive isotopes
- Replies: 17
- Views: 9683
Re: Radioactive isotopes
I waiting for clarification at the moment. We only just bought a new set in 2021 I don't want to get rid of them and don't see a need to. Our Princple is going into back for us.
Maybe someone new that's freaked out without actually knowing.
Maybe someone new that's freaked out without actually knowing.
- 06 Jun 2023, 08:49
- Forum: Safety with Chemicals
- Topic: Radioactive isotopes
- Replies: 17
- Views: 9683
Re: Radioactive isotopes
Morning Brains trust,
Has anyone else had a directive to dispose of Radioactive Isotopes we only just purchased new ones in 2021. Any input would be greatly appreciated.
Has anyone else had a directive to dispose of Radioactive Isotopes we only just purchased new ones in 2021. Any input would be greatly appreciated.
- 30 May 2023, 15:11
- Forum: Biology, Physics...
- Topic: Disposal of used agar plates
- Replies: 33
- Views: 17761
- 30 May 2023, 14:22
- Forum: Biology, Physics...
- Topic: Disposal of used agar plates
- Replies: 33
- Views: 17761
Re: Disposal of used agar plates
I would get your school to invest in a pressure cooker. We put them in an oven bag then pressure cooker on high for 15 mins. They really should be destroyed under heat and pressure. Then they can safely go in the bin.
- 30 May 2023, 09:29
- Forum: Forum Support Desk
- Topic: Lead Nitrate
- Replies: 3
- Views: 4266
Re: Lead Nitrate
lead(II) nitrate <0.003 M (<0.1% wt/wt) 7-12 years
lead(II) nitrate 0.003-0.03 M (0.1-1% wt/wt) 11-12
lead(II) nitrate 0.03-0.18 M (1-6% wt/wt) and above including solid Teacher only
lead(II) nitrate 0.18-0.45 M (6-15% wt/wt)
that's according to Riskassess
lead(II) nitrate 0.003-0.03 M (0.1-1% wt/wt) 11-12
lead(II) nitrate 0.03-0.18 M (1-6% wt/wt) and above including solid Teacher only
lead(II) nitrate 0.18-0.45 M (6-15% wt/wt)
that's according to Riskassess
- 29 May 2023, 13:01
- Forum: Safety with Chemicals
- Topic: face shields
- Replies: 4
- Views: 5004
Re: face shields
Hi Everyone, I realise this thread is very old wondering what everyone does in the event of a spill. I dropped a jar of Meruric Iodide this morning that went everywhere. Cleaned up with safety glasses, apron, gloves but all I had was a blue covid mask. I cleaned up and put into a new storage contain...
- 26 May 2023, 09:38
- Forum: Sourcing Materials & Eq Repairs
- Topic: Bromine
- Replies: 9
- Views: 5244
- 15 May 2023, 12:15
- Forum: Biology, Physics...
- Topic: Digital Oscilloscopes
- Replies: 2
- Views: 4018
Re: Digital Oscilloscopes
Old one is a Dick Smith Q1280
newer but still over 28 years old
Dick Smith 60MH2 Oscilloscope Q1806 PS-605
newer but still over 28 years old
Dick Smith 60MH2 Oscilloscope Q1806 PS-605
- 05 May 2023, 09:52
- Forum: Safety with Chemicals
- Topic: Melting Plastic
- Replies: 2
- Views: 3948
Re: Melting Plastic
Wanted to do in TAS rooms, but I've since spoken with 3 Chemistry teachers. Because I was made to feel like a fool, apparently there is still some fumes not as toxic but still enough that it really doesn't need to be done. This is for Polymers HSC Chem which is only touched on, the kids have already...
- 04 May 2023, 14:38
- Forum: Safety with Chemicals
- Topic: Melting Plastic
- Replies: 2
- Views: 3948
Melting Plastic
Afternoon everyone, any help or sugguestions for alternate practicals would be greatly appreciated. I have a teacher that wants to melt milk bottles in a saucepan over heat, apparently for year 12 chemistry. Would you be happy with this? or is there an alternative. I've been told it will not give of...
- 03 Apr 2023, 13:23
- Forum: Chemistry and Labware - General
- Topic: Chemicals not sold by Westlab or other common suppliers
- Replies: 13
- Views: 6082
Re: Chemicals not sold by Westlab or other common suppliers
If you have a good HT I'd take it to them, I'm always sus with anything benzene or bromine. See what he is doing with it and the cost alone of the new chemicals for a once off, may be enough of a deterrent.
- 24 Mar 2023, 13:43
- Forum: Miscellaneous
- Topic: Ordering for Practical Lessons
- Replies: 50
- Views: 26259
- 24 Mar 2023, 13:42
- Forum: Miscellaneous
- Topic: Ordering for Practical Lessons
- Replies: 50
- Views: 26259
Re: Ordering for Practical Lessons
Yep didn't take long, one email at 10.30pm last night didn't read till this morning. 3 teachers wanting pracs and saw the warning, they knew they were all pracs that were already made up so OKAY with that. Not the HT yet. They'll all realise they only have 9 days to go soon!!!! Then end of term yah!!!
- 22 Mar 2023, 08:59
- Forum: Miscellaneous
- Topic: Ordering for Practical Lessons
- Replies: 50
- Views: 26259
Re: Ordering for Practical Lessons
Okay I've set mine too, 1 day to start, would like it to be 2 but lets see the reaction to this first. I'm away tomorrow so it will be interesting.
- 21 Mar 2023, 13:25
- Forum: Sourcing Materials & Eq Repairs
- Topic: copper ore
- Replies: 3
- Views: 3657
Re: copper ore
You could try CSA Glencore Mine in Cobar NSW 0268365100 I'm sure they wouldn't mind sending you some if you explain it's for Educational purposes.
Let me know how you go. Cheers
Let me know how you go. Cheers
- 21 Mar 2023, 12:39
- Forum: Miscellaneous
- Topic: Ordering for Practical Lessons
- Replies: 50
- Views: 26259
Re: Ordering for Practical Lessons
I just noticed it only came out yesterday on Riskassess!! lol It's in the news section at the bottom of the Home page.
- 21 Mar 2023, 12:04
- Forum: Miscellaneous
- Topic: Ordering for Practical Lessons
- Replies: 50
- Views: 26259
Re: Ordering for Practical Lessons
I've only just found on Riskassess there is a Warning on short-notice bookings / Cut-off time if you go into the tools section. I don't know if I'm game to set ours most give me 2 days notice but HT believes 11pm friday is fine for 9.10 Monday :cheesy: :cheesy: :cheesy: Would love to know if anyone ...
- 20 Mar 2023, 09:12
- Forum: Biology, Physics...
- Topic: Slowing down agar plate growth?
- Replies: 4
- Views: 4124
Re: Slowing down agar plate growth?
In the past I've taken a photo, then put in the fridge over the weekend upside down so no condensation.