Search found 1433 matches

by RosalieM
31 Aug 2007, 09:24
Forum: The Lab Tech Position
Topic: re Science Conference at St Mary's 2007
Replies: 3
Views: 2529

Re: re Science Conference at St Mary's 2007

Is there any more information about this yet? I just did a seach in Chemtalk for it after Liz's comment in the forum on the CSIS in-service coming up. I think it would be great if we could take advantage of them being so close together!
Rosalie
by RosalieM
28 Aug 2007, 12:55
Forum: Safety with Chemicals
Topic: 2007 Chemical Safety in Schools Update Course
Replies: 40
Views: 12110

Re: 2007 Chemical Safety in Schools Update Course

I'm thinking of going... I just got it in the mail today and I'll have to get approval. Perhaps we 'country kids' can car-pool it to Sydney? I can't imagine they would let my fly down for the day!
Rosalie
by RosalieM
28 Aug 2007, 11:28
Forum: Chemistry and Labware - General
Topic: Molarity of Copper Sulfate for Electrolysis
Replies: 5
Views: 2122

Re: Molarity of Copper Sulfate for Electrolysis

PS it is a beautiful day here too. I think Spring is on its way!
by RosalieM
28 Aug 2007, 11:17
Forum: Chemistry and Labware - General
Topic: Safety glasses hygiene
Replies: 54
Views: 22025

Re: Safety glasses hygiene

So what happens when the kids leave? Do they take the glasses with them or do they get cleaned and passed on to the new batch of yr 7 kids? Also, do you do the same for lab coats?
Rosalie
by RosalieM
24 Aug 2007, 14:30
Forum: Miscellaneous
Topic: Design of new laboratory.
Replies: 11
Views: 4426

Re: Design of new laboratory.

Some things I wish for but don't have are a sink big enough to wash a 2L measuring cylinder and a wall mounted draining rack near the sink. Also, make sure shelves are the right size for storage. We use the plastic dropper bottle trays which hold 10 and fit perfectly on our shelves. Also, a teacher ...
by RosalieM
24 Aug 2007, 14:20
Forum: Sourcing Materials & Eq Repairs
Topic: genetics DVD
Replies: 26
Views: 8125

Re: genetics DVD

That Simpsons episode sounds great! Where can you get it?
Rosalie
by RosalieM
23 Aug 2007, 13:40
Forum: Sourcing Materials & Eq Repairs
Topic: tin nitrate
Replies: 5
Views: 2371

Re: tin nitrate

I'll be using tin chloride instead as that seems to be the only tin compound available and we have it in stock. It is for a yr 12 prac on galvanic cells. The teacher has said this will work ok. If anyone happens to come across tin nitrate in their travels though, do tell!
Thanks,
Rosalie
by RosalieM
22 Aug 2007, 15:11
Forum: Sourcing Materials & Eq Repairs
Topic: tin nitrate
Replies: 5
Views: 2371

tin nitrate

Anyone know where I can get tin nitrate? I've looked in q-stores, serrata and science supply for it and it isn't there... I need it for Friday which doesn't give me much time! I don't really want to ask other schools if I can have some unless I know I can replace it.
Rosalie
by RosalieM
21 Aug 2007, 14:34
Forum: Chemistry and Labware - General
Topic: indicators
Replies: 8
Views: 3261

Re: indicators

Thank you! I guess my instructions were misssing the 'filter' step... Not to worry - hopefully they all indicate what they are supposed to by the time I finish with them!
Rosalie
by RosalieM
21 Aug 2007, 13:49
Forum: Chemistry and Labware - General
Topic: indicators
Replies: 8
Views: 3261

Re: indicators

Today I actually had time to start making up my indicators... but when I got to Litmus, I found that 10g in 500ml water (which is what my recipe says) isn't dissolving. I had it on the hotplate/magnetic stirrer for ages, then I added extra water to make it up to almost 1L but it still hasn't dissolv...
by RosalieM
21 Aug 2007, 11:12
Forum: Sourcing Materials & Eq Repairs
Topic: Do i really need one?
Replies: 7
Views: 3046

Re: Do i really need one?

Have a look at the forum 'dishwashers' under chemistry labware and general. There was a bit of discussion about what's good a few weeks/months ago. I don't have one so I can't really comment, except to say I would have more time for keeping solution bottles full if I didn't spend so much time washin...
by RosalieM
10 Aug 2007, 14:32
Forum: Chemistry and Labware - General
Topic: hydrogen balloons
Replies: 8
Views: 3892

Re: hydrogen balloons

One of the teachers here saus Zinc and Sulfuric Acid with a little bit of copper sulfate works well. Only need a small amount of zinc. Blow the balloon up a few times with air first to stretch it out a bit too.
Rosalie
by RosalieM
10 Aug 2007, 12:16
Forum: Sourcing Materials & Eq Repairs
Topic: Eyes for dissection
Replies: 28
Views: 20273

Re: Eyes for dissection

I just purchased 3 model eyes (about 15cm I think - don't have them with me now) on Wednesday from DealsDirect and they arrived today. They are quite good although you don't get the gooey fun of cutting up a real eye. If you can't get a real one though, a model is good. Go to http://<URL removed, se...
by RosalieM
08 Aug 2007, 09:47
Forum: Chemistry and Labware - General
Topic: Taste Tests and PTU
Replies: 12
Views: 4063

Re: Taste Tests and PTU

If it is what I am thinking of, we used this paper when I was at uni in genetics. It is in brussell sprouts so those people who like brussel sprouts can't taste the PTU and those who don't like brussel sprouts can taste it. I used it after that as an excuse not to eat them when I went home on holida...
by RosalieM
07 Aug 2007, 08:51
Forum: Chemistry and Labware - General
Topic: indicators
Replies: 8
Views: 3261

Re: indicators

Thanks - this is the first time I've had to make them up as there was already quite a supply when I started working here. I'll go with the metho then!
by RosalieM
06 Aug 2007, 12:09
Forum: Chemistry and Labware - General
Topic: indicators
Replies: 8
Views: 3261

indicators

Hi All,
I'm needing to make up some more indicators. Some of my recipes say to use ethanol (eg for phenolphthalein and methyl red). Does metho do the job just as well? It is far cheaper and easier to order...
Rosalie
by RosalieM
06 Aug 2007, 12:03
Forum: Sourcing Materials & Eq Repairs
Topic: Wash Bottles what sort??
Replies: 4
Views: 2133

Re: Wash Bottles what sort??

The only problem I have with wash bottles is putting the lid on after filling them! I frequently squirt myself or whatever happens to be nearby as i screw the lid back on in a hurry... I guess it doesn't matter if you have side or top squirters - they still squirt!
Rosalie
by RosalieM
02 Aug 2007, 12:04
Forum: Chemistry and Labware - General
Topic: cleaning a vandergraph
Replies: 8
Views: 3980

Re: cleaning a vandergraph

if you do a search in chemtalk for 'van' you will get to the previous discussion on this. Might give you some more clues.
Rosalie
by RosalieM
02 Aug 2007, 11:58
Forum: Announcements
Topic: STANSW annual conference
Replies: 7
Views: 3984

Re: STANSW annual conference

I just had a look at the website... Where does it say what is on and how much it costs? I clicked on the link to “Our Rapidly Changing World” conference (I assume this is the one you are talking about?) but can't see anything for lab techs. Am in looking in the right place?
Rosalie