Search found 2625 matches
- 15 Jun 2007, 12:07
- Forum: Safety with Chemicals
- Topic: Shelf Life
- Replies: 5
- Views: 2458
Re: Shelf Life
Just to help your self, when we have a new chemical arrive, we do put the date on that chemical, 6/07 so I know it arrived at school in June 2007. With solutions, we have a label on the back of the bottle, and put the date in ink on the label, yes sometimes it gets wet, but it does not matter really...
- 13 Jun 2007, 12:57
- Forum: Safety with Chemicals
- Topic: Zinc Nitrate?
- Replies: 4
- Views: 1994
Re: Zinc Nitrate?
Its safe to use with year 7-12 so its a green go dot.
Cheers
Cheers
- 12 Jun 2007, 09:18
- Forum: Safety with Chemicals
- Topic: Disposal of Hydrogen Sulphide
- Replies: 1
- Views: 1153
Re: Disposal of Hydrogen Sulphide
Hydrogen Sulfide in the NSW CSIS book, is a waste 29 Inorganic sulfides warning Toxic Hydrogen sulfide gas evolved if in contant with acid. Wear Rubber (Latex) gloves, safety glasses, laboratory coat, Work in fume cupboard or well ventilated area. Clean up & disposal * Liquid Add Iron chloride s...
- 07 Jun 2007, 09:27
- Forum: Safety with Chemicals
- Topic: Calcium Oxide
- Replies: 5
- Views: 2635
Re: Calcium Oxide
For all Moisture absorb chemical's, we place cling wrap on the bottle neck, and then place a small plastic cylinder onto the cling wrap. That absorb's moisture and are marked DO NOT EAT, (That you find in tablet and vitamin bottles (Once the bottle is empty). Then place the lid on. So far (Being doi...
- 07 Jun 2007, 09:04
- Forum: Biology, Physics...
- Topic: Van De Graaf Generator
- Replies: 12
- Views: 13972
Re: Van De Graaf Generator
Many thanks for that site on the Van De Graaf Generator. What a great site this is.
Thank you all so much.
Regards
Thank you all so much.
Regards
- 06 Jun 2007, 12:47
- Forum: Biology, Physics...
- Topic: Van De Graaf Generator
- Replies: 12
- Views: 13972
Van De Graaf Generator
Hi folks,
We have a very old Van De Graaf Generator given to us, only last week. How would I clean it? So far I have used warm soapy water, and things are looking a little better. But the main silver dome, is awful. What would you suggest I use??
Can I use Silver cleaner?
Help
We have a very old Van De Graaf Generator given to us, only last week. How would I clean it? So far I have used warm soapy water, and things are looking a little better. But the main silver dome, is awful. What would you suggest I use??
Can I use Silver cleaner?
Help
- 06 Jun 2007, 10:41
- Forum: Announcements
- Topic: Risk Assessment Sheets
- Replies: 10
- Views: 4841
Re: Risk Assessment Sheets
Hi Kim, Well done, it is great lay out, tick boxes, are just the way to go.
Thank you
Regards
Thank you
Regards
- 06 Jun 2007, 10:25
- Forum: Safety with Chemicals
- Topic: I Should Have Stayed In Bed
- Replies: 27
- Views: 8855
Re: I Should Have Stayed In Bed
Yes we also do this, with our glass stirring rods.
Works really well, so far.
Regards
Works really well, so far.
Regards
- 05 Jun 2007, 11:20
- Forum: Chemistry and Labware - General
- Topic: Cleaning a Pear shape Flask
- Replies: 9
- Views: 3727
Simple top tip
It really is just greatbindi wrote:Dont Laugh !
Try 'napysan' over night. (not sure how its spelt?)
Not only does it remove stains from clothing but also.....pots, pans and glasswear!
Something went wrong, this was to be Simple Top Tip
Sorry folks
- 04 Jun 2007, 14:33
- Forum: Chemistry and Labware - General
- Topic: Universal indicator
- Replies: 3
- Views: 2149
Re: Universal indicator
Try adding a few drops of 0.05M Sodium Hydroxide untill the mixture returns to green. Some times it works fine, other times it will not return to green.
Good luck
Regards
Good luck
Regards
- 01 Jun 2007, 14:24
- Forum: Announcements
- Topic: Risk Assessment Sheets
- Replies: 10
- Views: 4841
Re: Risk Assessment Sheets
I believe the CSIS package states, in NSW that the teacher do the risk assesments sheets, I do the filing of them, and get them out, I even type them up, but only once the teacher has completed them and signed by the Head Teacher, do I start typing on them.\Page 20-24 in Volume 1 All Schools K-12. R...
- 30 May 2007, 14:11
- Forum: The Polling Booth
- Topic: Have you ever
- Replies: 1
- Views: 6389
Re: Have you ever
Thank you to all those people who have cast a vote. This poll is being down for our OH&S question sheet. So please help us along and cast your vote by this Friday 1st June.
Thank you very much
Thank you very much
- 29 May 2007, 09:14
- Forum: The Lab Tech Position
- Topic: Sterile nutrient agar plates
- Replies: 4
- Views: 3466
Re: Sterile nutrient agar plates
Do you Sterilise your Agar plates?? After mixing all the items together?? Before pouring your plates?? This can be done two ways, Put foil on top of flask, ans simmer the liquid for 30 Minutes on a lower heat on your Hot plate. Stirring all the time, (need to keep an eye on it), Remove from heat and...
- 29 May 2007, 09:06
- Forum: The Polling Booth
- Topic: Do you have a Spill's Kit? has it been used?
- Replies: 1
- Views: 6533
Re: Do you have a Spill's Kit? has it been used?
Thank you everyone the did the polls, it was a question our OH&S asked, if I could find out for them. With out this site, it would have meant a lot of phoneing.
So many thanks to you all.
Numbers for these two poll's will be put together on Friday, so please cast your vote now.
Thank You
So many thanks to you all.
Numbers for these two poll's will be put together on Friday, so please cast your vote now.
Thank You
- 25 May 2007, 09:06
- Forum: The Polling Booth
- Topic: Have you ever
- Replies: 1
- Views: 6389
Have you ever
Hi all, Have you ever had to use your Spills Kit?
Regards
Regards
- 25 May 2007, 09:04
- Forum: The Polling Booth
- Topic: Do you have a Spill's Kit? has it been used?
- Replies: 1
- Views: 6533
Do you have a Spill's Kit? has it been used?
Do you have a Spills Kit?
Regards
Regards
- 25 May 2007, 09:02
- Forum: Safety with Chemicals
- Topic: spikk kits
- Replies: 16
- Views: 6197
We keep ours in a Paper Ream box, the strong cardboard boxes the paper arrives in. The A4 size fits all the bits put down in CSIS. Much cheaper then purchasing one. Remember to put a sign above the Spill's Kit So everyone can see where it lives. We have had ours for about 4 years now, as they never ...
- 23 May 2007, 09:44
- Forum: Biology, Physics...
- Topic: Cathode Ray Oscilloscope
- Replies: 13
- Views: 4938
- 22 May 2007, 08:13
- Forum: The Lab Tech Position
- Topic: Potassium Hexacyanoferate Solution
- Replies: 6
- Views: 3159
Hi, Potassium Hexacyanoferrate III or II???????????, is know in the CSIS page 202 as Potassium Ferricyanide, it is a Red powered. You will need to know if it is III or II, most important. It is Non Classified chemical. safe to use with 7-12 years, so will have a green dot on the bottle. It should be...
- 18 May 2007, 14:18
- Forum: The Polling Booth
- Topic: Who cleans the class rooms
- Replies: 19
- Views: 15289