nitrogen dioxide & dinitrogen tetroxide
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- Posts: 38
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- State/Location: NSW
nitrogen dioxide & dinitrogen tetroxide
Hi everyone,
Now that nitrogen dioxide & dinitrogen tetroxide is now specified in the NSW chemistry syllabus in the equilibrium section, How is everyone doing it? We used to use nitric acid and copper wire in a fume hood but haven't done it in a few years. I've also read it can be made by heating lead nitrate but i've never had much luck with bunsen burners in the fume hood. I guess youtube is always an option.
Any thoughts would be appreciated.
Now that nitrogen dioxide & dinitrogen tetroxide is now specified in the NSW chemistry syllabus in the equilibrium section, How is everyone doing it? We used to use nitric acid and copper wire in a fume hood but haven't done it in a few years. I've also read it can be made by heating lead nitrate but i've never had much luck with bunsen burners in the fume hood. I guess youtube is always an option.
Any thoughts would be appreciated.
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- ELIZABETH
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Re: nitrogen dioxide & dinitrogen tetroxide
We're using Iron(III) nitrate and Potassium thiocyanate
- fibreweb
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Re: nitrogen dioxide & dinitrogen tetroxide
I'm lucky in that there are 2 large glass sealed tubes of NO2 that someone made over 20 years ago when it was last in the syllabus.
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Re: nitrogen dioxide & dinitrogen tetroxide
Same here fibreweb
Ours definitely look professionally made . I asked my off-sider where they come from . He said they were here when he started 25 years ago .
If they are back in the syllabus then there's a good chance one of the suppliers will start selling them again .
Having said that , I had to make some when I was casual at another school last year . I also had to google it and dropped copper into Conc Nitric acid in a fume hood . within seconds a dark brown gas starts to form and the trick is to collect it in a test Tube and cork it quick all in the fume hood as this stuff is nasty .
From Memory I used a large Side arm test tube with a tube running into a collection test tube . The gas will basically fall into the collection tube , when it looks like it has a nice amount of brown gas in it , cork it quick .
Now I stuffed up when I tried it and forgot to have a cork ready for the side arm test tube . I just stuck my thumb over the end while it filled the collection tube . When I removed my thumb it was brown and leathery
![Whistling :whistling2:](./images/smilies/whistling.gif)
![Crazy :crazy:](./images/smilies/crazy.gif)
So plan it carefully , wear gloves
![Very Happy :D](./images/smilies/biggrin.gif)
Incidentally it works really well , Heating the tube of gas in a beaker of hot water it goes clear , cooling it in a beaker of ice water , it goes really dark
But the cork will be stuffed by the end of the day , Nitrogen Dioxide is quite nasty stuff .
I was wondering whats the procedure if you accidentally drop one of these tubes in the class and the gas escapes
- Loopy
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Re: nitrogen dioxide & dinitrogen tetroxide
Hi all,
I got 1 pair of NO2/N2O4 tubes for equilibrium from a place in WA. In 2014 they cost $134 + freight. The tubes are about 14cm long.
Am I allowed to post the company's information for this specialist item? Or I can pm the info to anyone interested.
I got 1 pair of NO2/N2O4 tubes for equilibrium from a place in WA. In 2014 they cost $134 + freight. The tubes are about 14cm long.
Am I allowed to post the company's information for this specialist item? Or I can pm the info to anyone interested.
Lou P.
Learner Lab Technician
Wagga Wagga
NSW
Learner Lab Technician
Wagga Wagga
NSW
- Labbie
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Re: nitrogen dioxide & dinitrogen tetroxide
Loopy the rules at the moment are not up, so my guess would be PM them. Westlab want would you suggest?
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired![Love :wub:](./images/smilies/wub.gif)
Lab Manager/Lab Tech, mind reading etc etc
Now retired
![Love :wub:](./images/smilies/wub.gif)
- ELIZABETH
- Posts: 233
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Re: nitrogen dioxide & dinitrogen tetroxide
Re: nitrogen dioxide & dinitrogen tetroxide
Post by Loopy » Fri Oct 19, 2018 9:55 am
Hi all,
I got 1 pair of NO2/N2O4 tubes for equilibrium from a place in WA. In 2014 they cost $134 + freight. The tubes are about 14cm long.
Am I allowed to post the company's information for this specialist item? Or I can pm the info to anyone interested.
Lou P.
Learner Lab Technician
Wagga Wagga
NSW
Hi Lou,
I wonder if you could PM me the details and address of the supplier?
CheersLiz Brown
Post by Loopy » Fri Oct 19, 2018 9:55 am
Hi all,
I got 1 pair of NO2/N2O4 tubes for equilibrium from a place in WA. In 2014 they cost $134 + freight. The tubes are about 14cm long.
Am I allowed to post the company's information for this specialist item? Or I can pm the info to anyone interested.
Lou P.
Learner Lab Technician
Wagga Wagga
NSW
Hi Lou,
I wonder if you could PM me the details and address of the supplier?
CheersLiz Brown
Re: nitrogen dioxide & dinitrogen tetroxide
Yes please!
- Kathryn
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Re: nitrogen dioxide & dinitrogen tetroxide
Hi Loopy, Could you please PM me the details of the supplier.
Thanks
Kathryn
kjones@cedars.nsw.edu.au
Thanks
Kathryn
kjones@cedars.nsw.edu.au
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Re: nitrogen dioxide & dinitrogen tetroxide
Me too please! maria.caira@ccgs.nsw.edu.au MariaQ
Re: nitrogen dioxide & dinitrogen tetroxide
And me too, please!
carol.howes@det.nsw.edu.au
carol.howes@det.nsw.edu.au
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- Posts: 84
- Joined: 02 Sep 2015, 08:41
- Job Title: Boss
- School: Central Coast Grammar
- State/Location: NSW
Re: nitrogen dioxide & dinitrogen tetroxide
Hi Loopy, Ive tried googling to buy these tubes with no luck, did you manage to find the supplier you purchased from? Thanks for any help. Regards MariaQ
- Loopy
- Posts: 592
- Joined: 08 Jun 2006, 10:00
- School: Mater Dei Catholic College
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Re: nitrogen dioxide & dinitrogen tetroxide
It seems my contact/supplier is no more.
The information I had was Allirra Glassblowing P/L, 41 Weston St, Navel Base . WA 6165. Ph: (08) 94371909.
Sorry for that...
The information I had was Allirra Glassblowing P/L, 41 Weston St, Navel Base . WA 6165. Ph: (08) 94371909.
Sorry for that...
Lou P.
Learner Lab Technician
Wagga Wagga
NSW
Learner Lab Technician
Wagga Wagga
NSW
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- Posts: 84
- Joined: 02 Sep 2015, 08:41
- Job Title: Boss
- School: Central Coast Grammar
- State/Location: NSW
Re: nitrogen dioxide & dinitrogen tetroxide
Thanks Loopy, I looked them up and they are permanently closed
MariaQ
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- DavidPeterson
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Re: nitrogen dioxide & dinitrogen tetroxide
I just generate my own NO2 / N2O4 and seal into flasks for equilibrium demonstrations
DCP ![Cool 8-)](./images/smilies/cool.gif)
STEM Resource @ Laboratory Manager
RPAS (Drone) Pilot
![Cool 8-)](./images/smilies/cool.gif)
STEM Resource @ Laboratory Manager
RPAS (Drone) Pilot