Search found 5 matches

by LabbieSeth
15 May 2024, 12:57
Forum: Recipes and Pracs
Topic: Neutralisation of HCl
Replies: 3
Views: 35

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...
by LabbieSeth
09 May 2024, 08:36
Forum: Safety with Chemicals
Topic: mini SDS
Replies: 18
Views: 668

Re: mini SDS

Thank you Merilyn :)
by LabbieSeth
08 May 2024, 08:31
Forum: Safety with Chemicals
Topic: mini SDS
Replies: 18
Views: 668

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.
by LabbieSeth
27 Mar 2024, 13:09
Forum: Free classifieds - 4 sale/swap/wanted/giveaway
Topic: Wanted .Copy of "Working in Science"
Replies: 5
Views: 6821

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.
by LabbieSeth
08 Mar 2024, 12:38
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 18145

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 :)