Search found 5 matches
- 15 May 2024, 12:57
- Forum: Recipes and Pracs
- Topic: Neutralisation of HCl
- Replies: 6
- Views: 252
Re: Neutralisation of HCl
Hi, i am try to neutralise hcl before pouring it down the sink - i have added NaOH - but it has gone the wrong way and has gone to ph11 - how do i bring it back to ph7 for safe disposal. thanks Hi Nic, As the solution is now basic (alkaline - anything reading above pH 7) you can add an acid, i.e. H...
- 09 May 2024, 08:36
- Forum: Safety with Chemicals
- Topic: mini SDS
- Replies: 18
- Views: 1045
Re: mini SDS
Thank you Merilyn
- 08 May 2024, 08:31
- Forum: Safety with Chemicals
- Topic: mini SDS
- Replies: 18
- Views: 1045
Re: mini SDS
Is it a legal requirement within NSW Dept. Schools to have/keep a chemical manifest on chemwatch? I agree it is a pain to use and would much rather create/use my own format.
- 27 Mar 2024, 13:09
- Forum: Free classifieds - 4 sale/swap/wanted/giveaway
- Topic: Wanted .Copy of "Working in Science"
- Replies: 5
- Views: 8113
Re: Wanted .Copy of "Working in the Science"
Is there a specific part of the manual you were after? i.e. the recipes for stains, agar's, etc.
- 08 Mar 2024, 12:38
- Forum: Chemistry and Labware - General
- Topic: Free elements sets for schools
- Replies: 30
- Views: 19105
Re: Free elements sets for schools
Hi all, i just wanted to ask for an update on how everyone is storing/displaying their element sets now that we have had time.... hopefully.... to rack through our brains and come up with different ways to keep our head teacher happy xD
Thanking you in advance
Thanking you in advance