Search found 257 matches
- 08 Feb 2008, 11:40
- Forum: Sourcing Materials & Eq Repairs
- Topic: hand held pH meters
- Replies: 4
- Views: 1670
Re: hand held pH meters
Hi Annette, we use a Waterproof pHScan 2 Tester from Eutech Instruments. They are a hand held, pocket sized, very easy to use piece of apparatus that many suppliers carry. (Serrata, Lab Supply, etc) Ours are from a local water testing supply lab (Vendart P/L). We could not be happier with them. They...
- 08 Feb 2008, 10:17
- Forum: Chemistry and Labware - General
- Topic: rimless test tubes
- Replies: 3
- Views: 1428
Re: rimless test tubes
Thanks Carol, very reassuring.
Any known supplier for our standard 18 x 150mm tubes??
~Robyn
Any known supplier for our standard 18 x 150mm tubes??
~Robyn
- 08 Feb 2008, 08:56
- Forum: Chemistry and Labware - General
- Topic: rimless test tubes
- Replies: 3
- Views: 1428
rimless test tubes
Hi All, and if it's not too late - HAPPY NEW YEAR!!! Can my colleagues give me any feedback about using rimless test tubes instead of rimmed ones?? I am so tired of the rims chipping off leaving a nasty sharp edge which we are forced to flame to polish off. The repaired test tube does not always loo...
- 14 Dec 2007, 11:44
- Forum: Miscellaneous
- Topic: List of chemicals with their formulas
- Replies: 3
- Views: 2031
Re: List of chemicals with their formulas
Hi Rhonda, a good idea would be to have a copy of- the SI Chemical Data book by Gordon Aylward & Tristan Findlay published by John Wiley & Sons, 33 Park Road, Milton Q. 4064 ISBN 0 471 33554 1 It has all the formulae and data on each chemical including its solubility and much, much more in a...
- 04 Dec 2007, 13:23
- Forum: Miscellaneous
- Topic: PPE
- Replies: 8
- Views: 3521
Re: PPE
Thank you, Sue - I saw the apron but am not sure of the gloves in the Q Stores catalogue as they do not specify chemical handling, I guess I'll try the nitrile solvex gloves, 33cm, $42 for 12. Have you seen any documentation regarding this PPE? It crept up on me....if we hadn't gone to the Inservice...
- 04 Dec 2007, 10:12
- Forum: Miscellaneous
- Topic: PPE
- Replies: 8
- Views: 3521
PPE
Hi All,
a colleague came back from the Inservice at St Marys with the recommendation we need full length leather aprons and the thick long nitrile gloves for acid work.
Can anyone advise what they bought and where?
I would be very grateful,
Cheers,
~Robyn
a colleague came back from the Inservice at St Marys with the recommendation we need full length leather aprons and the thick long nitrile gloves for acid work.
Can anyone advise what they bought and where?
I would be very grateful,
Cheers,
~Robyn
- 23 Nov 2007, 13:39
- Forum: Safety with Chemicals
- Topic: The Universal Mystery
- Replies: 11
- Views: 3879
Re: The Universal Mystery
Thanks all for your comments, I notice that the bible, The Laboratory, has the recipe for Universal Indicator. I have been tempted to make my own again after getting in the necessary 4 stains years ago (and guessing the 4th decimal place with methyl red). When I made it up, it looked so 'watery' com...
- 23 Nov 2007, 09:07
- Forum: Safety with Chemicals
- Topic: The Universal Mystery
- Replies: 11
- Views: 3879
Re: The Universal Mystery
Hi Helen, the teacher tried the tainted one against the green one and found the resultant pH colour was different. They had to give the student who had not the knowledge that she had a different one to the others the benefit of the doubt. Haven't had a chance to test the red one myself yet but will ...
- 23 Nov 2007, 08:30
- Forum: Safety with Chemicals
- Topic: The Universal Mystery
- Replies: 11
- Views: 3879
Re: The Universal Mystery
Hello Sassi,
very possible and probably does happen, however it is happening to bottles that the students had not access to as yet. Very frustrating!
~Robyn
very possible and probably does happen, however it is happening to bottles that the students had not access to as yet. Very frustrating!
~Robyn
- 23 Nov 2007, 08:10
- Forum: Safety with Chemicals
- Topic: The Universal Mystery
- Replies: 11
- Views: 3879
The Universal Mystery
Hi All, here in Science we have a mystery! We buy the Chem-Supply Universal Indicator and use it undiluted. From time to time we find the contents in the small 25mL dropper bottle has gone from a nice deep green to red. This is despite ensuring all of the bottle and dropper assembly are clean & ...
- 22 Nov 2007, 15:15
- Forum: Safety with Chemicals
- Topic: Radioactive Sources
- Replies: 7
- Views: 2511
Re: Radioactive Sources
Hi Bindi,
it sounds like they want a Risk Assessment, doesn't it?
The Chemical Safety in Schools package has in the Curriculum Support Section, 3.2.4.6 Ionising radiation,
documentation regarding the safe handling of radioactive sources.
Hope this helps,
~Robyn
it sounds like they want a Risk Assessment, doesn't it?
The Chemical Safety in Schools package has in the Curriculum Support Section, 3.2.4.6 Ionising radiation,
documentation regarding the safe handling of radioactive sources.
Hope this helps,
~Robyn
- 22 Nov 2007, 11:19
- Forum: Safety with Chemicals
- Topic: risk assessment
- Replies: 145
- Views: 41836
Re: risk assessment
G'day all, this must be the most visited topic (except the Astronomy thread) ever. It shows how concerned we are for ourselves and our teachers when it comes to fulfilling the requirements by law. It concerns me how we are expected to carry the teachers work when it comes to these requirements.........
- 22 Nov 2007, 09:17
- Forum: Chemistry and Labware - General
- Topic: Specium jars or what for crystal gardens?????
- Replies: 5
- Views: 2391
Re: Specium jars or what for crystal gardens?????
Hi Donna,
we use 600mL beakers bearing in mind that the solution sometimes can be hard to clean out. At least with the beakers you can get inside them to scour.
Good Luck,
~Robyn
we use 600mL beakers bearing in mind that the solution sometimes can be hard to clean out. At least with the beakers you can get inside them to scour.
Good Luck,
~Robyn
- 20 Nov 2007, 13:50
- Forum: Safety with Chemicals
- Topic: Cyan projection slides
- Replies: 2
- Views: 1269
Re: Cyan projection slides
.............more importantly, I need also the cyan coloured cardboard that compliments the transparent one..............
~Robyn
~Robyn
- 20 Nov 2007, 13:23
- Forum: Safety with Chemicals
- Topic: Cyan projection slides
- Replies: 2
- Views: 1269
Cyan projection slides
Hiya all, I am looking for a supplier of cyan coloured projection slides to be used in the Hodson light kits. These seem to be the old type and may be no longer supplied as the new ones are solid transparent plastic. (more kid friendly but not the same as most of our current stock). Hope you can hel...
- 09 Nov 2007, 14:07
- Forum: Chemistry and Labware - General
- Topic: UNIVERSAL INDICATOR COLOUR CHART
- Replies: 2
- Views: 1355
Re: UNIVERSAL INDICATOR COLOUR CHART
Hi Ellice,
I will certainly try our textbooks, you never know - thanks,
~Robyn
I will certainly try our textbooks, you never know - thanks,
~Robyn
- 09 Nov 2007, 13:16
- Forum: Chemistry and Labware - General
- Topic: UNIVERSAL INDICATOR COLOUR CHART
- Replies: 2
- Views: 1355
UNIVERSAL INDICATOR COLOUR CHART
Hi All,
can anyone advise me of a website that one can print off a copy of the Universal Indicator colour chart?
I am trying to match up colours to some pH buffers I have made....
Thanks,
~Robyn
can anyone advise me of a website that one can print off a copy of the Universal Indicator colour chart?
I am trying to match up colours to some pH buffers I have made....
Thanks,
~Robyn
- 09 Nov 2007, 09:41
- Forum: Safety with Chemicals
- Topic: acids in plastic bottles
- Replies: 11
- Views: 3469
Re: acids in plastic bottles
Hi Rosalie, I can sympathasise with your dilemma. Our bible, the book The Laboratory, has pages devoted to plastics for storage, pages 27-29. If you don't have a copy, I can fax them to you. A quick look does not show the 2 for recylcing, however if you look on the bottom of the container, they usua...
- 08 Nov 2007, 09:43
- Forum: Chemistry and Labware - General
- Topic: HERMIT CRABS
- Replies: 2
- Views: 1205
HERMIT CRABS
Hi all,
is anyone aware of any specific regulations for keeping hermit crabs??
Cheers,
~Robyn
is anyone aware of any specific regulations for keeping hermit crabs??
Cheers,
~Robyn
- 07 Nov 2007, 14:22
- Forum: Sourcing Materials & Eq Repairs
- Topic: human cheek cells, prepared microscope slides
- Replies: 5
- Views: 2489
Re: human cheek cells, prepared microscope slides
Thanks Rhonda, we have been doing this as well for many years. I think for the lower years (7-10) it may be all they need but the teachers are now asking for the mounted minigrids for the seniors as they should probably be having practise with these for Uni Biology work. We really should also look i...