Labelling unknowns
- Xenon
- Posts: 264
- Joined: 09 Jun 2006, 10:00
- Job Title: Rocket Scientist
- School: Arndell Anglican College
- Suburb: Oakville
- State/Location: NSW
Labelling unknowns
What does everyone do with labelling 'unknowns', do you put the User Code colour dots and DGC group where appropriate, or just A,B,C ... X,Y,Z etc.? Just that it could be a dead-set give-away in some cases, for cluey seniors at least.
Xe, SD, KOPR
- nickykinz
- Posts: 271
- Joined: 02 Feb 2009, 12:53
- Job Title: Lab Assistant
- School: St Augustine's College
- Suburb: Augustine Heights
- State/Location: QLD
Re: Labelling unknowns
Last time we did something like this I edited the Chemwatch labels and just replaced the name of the chemical with the letter. I did express concern that this would give it away but the teachers said a: you are giving the students too much credit and b: they still have to justify why they say it is what they say it is to get their marks. These were only grade 9's though. The other option we considered for next time was to take the all the risk phrases etc and put them on all of them so they just are very careful with everything. Not sure how practical that is though.
Nicky
St Augustine's College
Augustine Heights, QLD 4300
St Augustine's College
Augustine Heights, QLD 4300
- Ian
- Posts: 575
- Joined: 16 Oct 2006, 10:00
- Job Title: Lab Assistant
- School: Macarthur Anglican School
- Suburb: Cobbitty
- State/Location: NSW
Re: Labelling unknowns
I am not sure if it is a good idea or not, but I label the bottles normally, and then put another blank label over the top with the "A", "B", "C", etc. That way, if there is an emergency where it is needed to know what the chemical is, then it is just a matter of removing the outer label. So far, the kids don't seem to have worked out how to remove the outer label.
Ian
Ian
- fibreweb
- Posts: 620
- Joined: 20 Jul 2006, 10:00
- School: Oxley High School
- Suburb: Tamworth
- State/Location: NSW
Re: Labelling unknowns
As most of the unknowns are only 0.1 M, a small quantity and are used quickly I just label them A.B. C etc.
Re: Labelling unknowns
Me too, fibreweb
Re: Labelling unknowns
I do the same as Ian. Sometimes cover the whole label and put a letter on it, sometimes if needed, I leave the risk phrases on the bottle and just cover name of chemical. It is handy to know straight away, what the chemical is , in case of emergency.
Lada
Lada
Re: Labelling unknowns
I've done risk phrases with a letter, and then in the folder of mini MSDS's that I send out to the teacher I list what the unknowns are on a piece of paper at the back of the folder. That way, presumably, blind Freddy could find the relevant info as required.
Cheers, K
- Labbie
- Posts: 3247
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Labelling unknowns
It must have the Diamond DG class & a coloured dot.
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Re: Labelling unknowns
I print a full page of the labels for all the chemicals and give this to the teacher.
IF the chemical is a bit nasty, then I print a list of the hazard phrases and put this at the Station without informing the student which chemical it is. This should alert them to be careful with ALL the samples.
Then I just label the bottles A,B,C etc..
IF the chemical is a bit nasty, then I print a list of the hazard phrases and put this at the Station without informing the student which chemical it is. This should alert them to be careful with ALL the samples.
Then I just label the bottles A,B,C etc..