Search found 6 matches
- 29 May 2023, 15:23
- Forum: Forum Support Desk
- Topic: Lead Nitrate
- Replies: 3
- Views: 4569
Lead Nitrate
Could other labbies please let me know what molarity of lead nitrate they use for Yr 7-10?
- 17 Aug 2021, 09:10
- Forum: Recipes and Pracs
- Topic: cobalt (II) chloride
- Replies: 9
- Views: 3040
Re: cobalt (II) chloride
We don't use Cobalt (in any form) at all anymore, I've removed it all due to it's environmental and health affects. Asked people to find alternatives and surprisingly when you ask them to find a less nasty chemical they always do. Just have to push them out of their old ways. I Hi Anna What do you ...
- 25 Sep 2020, 10:53
- Forum: Recipes and Pracs
- Topic: Potassium Iodide
- Replies: 2
- Views: 2293
Potassium Iodide
All my solutions of potassium iodide have turned yellow.
Can I still use them or do I need to make new solutions.
Can I still use them or do I need to make new solutions.
- 10 Dec 2019, 12:14
- Forum: Recipes and Pracs
- Topic: Litmus solution
- Replies: 3
- Views: 4944
Litmus solution
Hi Everyone I am having trouble making Litmus Solution. I have tried 2 recipes. One says to add 10g of Litmus, boil then filter. The filtering takes a long time. The other says to add 5g and stand for 24hrs then add 2 drops of Sodium Hydroxide. After I make the solution it is a nice purple colour bu...
- 20 Feb 2018, 08:28
- Forum: Safety with Chemicals
- Topic: Barium Nitrate
- Replies: 5
- Views: 5055
Barium Nitrate
Can years 7-10 use 0.1m barium nitrate? The CSIS information is not clear.
- 05 Feb 2018, 12:47
- Forum: Sourcing Materials & Eq Repairs
- Topic: Banded Iron
- Replies: 2
- Views: 2324
Banded Iron
Does anyone know where I can buy some samples of banded iron?