Search found 5 matches

by andrea
20 Aug 2009, 13:57
Forum: Sourcing Materials & Eq Repairs
Topic: Food in labs
Replies: 34
Views: 12603

Re: Food in labs

:popcorn: :popcorn: Hi everyone, Here we do food experiments like chocolate fossils, sherbert making, making honeycomb,random popualtions with M & Ms; meitosis with ( edible ) snakes & population distribution with wrapper lollies & so far :crazy: :crazy: no fatalities. I have all the par...
by andrea
28 May 2009, 13:42
Forum: Chemistry and Labware - General
Topic: Cleaning Silver Nitrate solution from bench tops!
Replies: 9
Views: 4028

Re: Cleaning Silver Nitrate solution from bench tops!

:coffee: :D Hi Edge, Am looking at my old stain removal sheet & to remove silver nitrate it says: 1) for old stains use conc acetic acid before using 2) potassium iodide followed by water.I have also found a 55 solution of sodium thiosulphate works well too.Hope you gets lots of workable suggest...
by andrea
17 Mar 2009, 10:49
Forum: Biology, Physics...
Topic: Agar-phenopthalein jelly
Replies: 29
Views: 10130

Re: Agar-phenopthalein jelly

:D :D Hi .The recipe I have for this prac is as follows: To make up 500ml of jelly weigh out about 15gm of agar & 2gm of NaOH. Dissolve the NaOH in some water .Heat about 400ml of water almost to boiling, add the softened agar ( I add some water to the weighed out agar to make a paste that is ea...
by andrea
25 Aug 2008, 13:52
Forum: Recipes and Pracs
Topic: Banned experiments
Replies: 80
Views: 39566

Re: Banned experiments

Hi Cindy, I have a list of banned experiments which I was given about 15 years ago in NSW. If you post your fax number I will fax it to you. The ammonium dichromate volcano is a NO!.....as posted the product is carcinogenic. Be very careful with the permanganate and glycerol.....incredible heat gen...
by andrea
07 May 2008, 09:04
Forum: The Lab Tech Position
Topic: Classification of Position
Replies: 11
Views: 4734

Re: Classification of Position

Hi Lorrae, I have the dubious honour of being the first appointed lab tech for our school, so I was wondering the same thing. I have been put on the level of Administration Office 3.1 on the non government school officer'saward. As yet I don't have a job description, I think I am writting it myself...