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Showing 221 - 230 of 327 results

Formation of crystals: Hi.

0
Publication Date: 03 August 2015
2 Responses
Answered by an Expert

Ammonium nitrate: Hi, Has anyone else had any trouble with ammonium nitrate absorbing water? Mine has become a clear mixture of liquid and crystals.

0
Publication Date: 31 July 2015
2 Responses

Risk assessment (thiosulfate): Do you have a RA for the reaction of 0.1M sodium thiosulfate with 2M hydrochloric acid, especially the cleaning up and disposal.

5
Publication Date: 30 July 2015
1 Responses

 Disposal of empty helium cylinders: From browsing Google, there seems to be a lot of confusion on how to dispose of empty helium gas cylinders.

4
Publication Date: 29 July 2015
1 Responses
Answered by an Expert

Phenylthiocarbamide paper: Hi,  Are you still allowed to use phenylthiocarbamide paper?

0
Publication Date: 28 July 2015
1 Responses
Answered by an Expert

Disposal of silver nitrate solid: I have collected silver nitrate solution in a winchester and decanted it off, ready to evaporate the solution, so that I am left with just the solid waste.

5
Publication Date: 21 July 2015
1 Responses
Answered by an Expert

Science drug lab equipment: Apparently school laboratories need a list, by item and quantity, of anything that could be targeted by a 'drug lab' break in.

0
Publication Date: 20 July 2015
1 Responses
Answered by an Expert

Use of a spirometer: One of our teachers would like to use a spirometer in class.  The spirometer requires the user to breath in rather than blow air out.  Are we allowed to do this, if we have dis

0
Publication Date: 17 July 2015
1 Responses
Answered by an Expert

Chemical disposal (chromium): I have a small amount of potassium dichromate and potassium chromate to be disposed. What is the best way to do this? 

0
Publication Date: 16 July 2015
1 Responses
Answered by an Expert

pH Probe: Can anyone suggest a pH probe with data logging function/capabilities for use with our senior science groups?

0
Publication Date: 16 July 2015
1 Responses

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