Storage and disposal of deliquescent chemicals - Zinc Nitrate: Hi, My bottle of zinc nitrate has liquid in it and the bottle has expanded. It does not look right.

Science Assist has moved and is now located on the ASTA website https://www.asta.edu.au/scienceassist. This website will be decommissioned and from Friday 1 August 2025 onwards, https://assist.asta.edu.au will redirect to https://www.asta.edu.au/scienceassist
(Please adjust any bookmarks accordingly).
For more information please go to https://asta.edu.au/assist-news-events/
Storage and disposal of deliquescent chemicals - Zinc Nitrate: Hi, My bottle of zinc nitrate has liquid in it and the bottle has expanded. It does not look right.
Calcium oxide disposal: Hi. Can anyone tell me how to dispose of some very old calcium oxide. The container is all swollen and the date on the bottle is Dec 1988.
Disposal of old equipment: We have cupboards full of old school science laboratory equipment including: balances, models, etc. Most of the equipment hasn't been touched in over 10 years.
This online resource covers energy transformation and conservation.
Bunsen Burners: What are the gas tubing and other connection specifications, including ma
Updated September 2016
This Standard Operating Procedure (SOP) contains a detailed method for how to perform a rat dissection.
Storage of nitrates: Hi, I'm upgrading the storage of my chemicals. Is it okay to store nitrates in clear glass bottles?
PVA Slime: There was a directive that came out from Education Queensland to all HODs in 2004/2005 regarding students not being permitted to take any slime made at school home.
This online resource investigates the scale of the universe.
Chemicals in schools (formaldehyde, melamine and cyanuric acid): Can someone please tell me if we can use formaldehyde (37%), melamine or cyanuric acid for IB individual design experiments in schoo