Search found 14 matches
- 05 Dec 2006, 10:43
- Forum: Miscellaneous
- Topic: Keep up the good work.
- Replies: 1
- Views: 1745
Keep up the good work.
Hi all, just a quck note to say I am retiring after 19 plus years. I have really enjoyed logging onto this site over the past months. I only wish such a site had existed when I started working in my job all those years ago. I am hoping to be able to log on occasionally from home and who knows may be...
- 05 Dec 2006, 10:31
- Forum: Chemistry and Labware - General
- Topic: Fine plastic tubing coils
- Replies: 2
- Views: 1634
I was not there but it sounds like the alternative to glass in the pasteur experiment. We sometimes use a piece of plastic tubing with a full loop which then has one end pointing upwards and the other through a cork into the beaker containing the broth. We maintain the tubing's shape by copper wire....
- 21 Nov 2006, 08:20
- Forum: Biology, Physics...
- Topic: fixing ammeters and voltmeters
- Replies: 5
- Views: 3411
Jim Cardigan from Scientrific calls in here annually and we have him repair meters, microscopes, collision trolleys and lots of other equipment. He has all the necessary spares and is not too expensive. I understand that he sometimes attends the conferences so you may catch him there, otherwise his ...
- 20 Nov 2006, 13:49
- Forum: Chemistry and Labware - General
- Topic: Gas equilibrium
- Replies: 2
- Views: 1451
We have a set of the same they are called NO[sub]2[/sub] and N[sub]2[/sub]O[sub]4[/sub] Temperature Equilibrium Tubes Catalogue No. 4426 and they come with instructions from The Welch Scientific Company, 7300 N.Linder Avenue, Skokie, Illinois. 60076 U.S.A. Mind you the set we have a really quite old...
- 02 Nov 2006, 14:10
- Forum: Safety with Chemicals
- Topic: storing dilute solutions
- Replies: 6
- Views: 3778
We now have all our dropper bottles stored in Unitrays which are small white trays with 10 compartments which will take 10 dropper bottles of 25 ml or 50 ml size. These are then stored in these trays in alphabetical order on shelves, similar to bookshelves in the prep room. They are excellent. Neat ...
- 24 Oct 2006, 13:03
- Forum: Chemistry and Labware - General
- Topic: Light Scattering Experiment
- Replies: 2
- Views: 1848
I have done the following prac lots of times and it works well. Solution A is a concentrated solution of sodium thiosulfate . solution B consists of 35 ml of concentrated sulfuric acid to 200 ml of water. In a darkened room, arrange for a strong beam of light (we use an old slide projector), to pass...
- 27 Sep 2006, 08:59
- Forum: Safety with Chemicals
- Topic: risk assessment
- Replies: 145
- Views: 39383
Hi Robb, I sent a private message but not certain if you have received it. We are currently reviewing RA procedures and drawing up a new form. I was wondering if you could forward by fax a copy of your format and any other relevent information that may assist and I will pass it on. Our frax no. is 4...
- 20 Sep 2006, 09:10
- Forum: Chemistry and Labware - General
- Topic: Purple agar jelly
- Replies: 9
- Views: 3858
To avoid the agar gel not setting I always put a little extra in for good measure. I have had no trouble with the loss of colour and I always use stainless steel trays, cover with gladwrap and store in the fridge. It has lasted for two or three days this way before use and worked well. I would not p...
- 11 Sep 2006, 14:07
- Forum: Chemistry and Labware - General
- Topic: Diastase
- Replies: 2
- Views: 1606
- 07 Sep 2006, 11:34
- Forum: Safety with Chemicals
- Topic: Bromine
- Replies: 20
- Views: 9015
- 05 Sep 2006, 12:08
- Forum: Sourcing Materials & Eq Repairs
- Topic: SHIPWRECKS AND SALVAGE
- Replies: 3
- Views: 2287
- 05 Sep 2006, 12:05
- Forum: Safety with Chemicals
- Topic: FUME CUPBOARD
- Replies: 4
- Views: 2900
- 23 Aug 2006, 15:37
- Forum: Biology, Physics...
- Topic: Prepared Slides
- Replies: 3
- Views: 2372
Prepared Slides
It may be worth trying to use more nail polish to fix coverslip to slide. I have not tried it for this material but have for others. It is worth a try.
- 13 Jun 2006, 10:15
- Forum: Chemistry and Labware - General
- Topic: Removing Rust
- Replies: 7
- Views: 3778
Rust stains.
I have found soaking in warm oxalic acid solution will remove those rust stains very quickly.