Hi everyone, we are doing a breathing prac next week using iced water, bromothymol blue & cobalt blue indicator paper but does anyone know where to find the indicator paper?? Can't find it in any of my supply books
Ta Kel
Breathing prac
- ELIZABETH
- Posts: 233
- Joined: 02 Jun 2006, 10:00
- School: O'Connor Catholic College
- Suburb: Armidale
- State/Location: NSW
Re: Breathing prac
I make Cobalt paper by soaking filter paper strips in Cobalt Chloride (any conc.) and drying it in a dessicator. It's used for showing the moisture in exhaled breath.
L
L
Re: Breathing prac
If it goes pink just dry it again in an oven till it goes blue. And store it with silicon gel which you can also dry with the paper till it goes blue too. Keeps quite a while in a screw top jar.
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- Posts: 1795
- Joined: 20 Mar 2007, 10:00
- Job Title: Lab Assistant
- Suburb: Tamworth
- State/Location: NSW
Re: Breathing prac
If you don't have time to dry it in an incubator or oven, we use an old hair dryer which works quickly! Just don't let go of the paper!! Or if you have blow dryers in your school toilets they should do the trick as well... but that's just a guess
- vlclabbie
- Posts: 367
- Joined: 21 Apr 2009, 11:22
- Job Title: Lab Chick
- Suburb: Albury
- State/Location: NSW
Re: Breathing prac
WOW thanks for those very knowledgeable answers!!!
Alas no Cobalt chloride so looks like a different prac... but will put it on the 'wishlist'!
Good karma coming your ways....
Kel
Alas no Cobalt chloride so looks like a different prac... but will put it on the 'wishlist'!
Good karma coming your ways....
Kel