Search found 4 matches

by NicD
30 May 2024, 11:07
Forum: Chemistry and Labware - General
Topic: storage of separating funnels
Replies: 5
Views: 1798

Re: storage of separating funnels

Hi just want to ask, when you store your separating funnels and quick fit glassware, do you grease it before you store it or as you bring it out to use.
just has esters done and no glassware was greased and luckily i have only 1 condensor and flask stuck together. Cheers
by NicD
15 May 2024, 12:27
Forum: Recipes and Pracs
Topic: Neutralisation of HCl
Replies: 6
Views: 405

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
by NicD
03 Nov 2023, 07:54
Forum: Chemistry and Labware - General
Topic: White crystal around sodium hydroxide solution bottles
Replies: 14
Views: 9646

Re: White crystal around sodium hydroxide solution bottles

Is it safe to rinse the droppers in 1mol hcl to clean out the NaOH, and still use them in the NaOH. I think that they might be some wax in the droppers and bottles, i have tried washing in water to no avail