This information sheet is an updated review of the answers to the following questions, and replaces the previously published Q&As:
What is the legal requirement for the temperature and the humidity for a chemical storeroom?
Storage of sodium metal:
We have had a few questions regarding the storage of sodium.
Glutaric acid: I have found some old glutaric acid in my chemical store and would like to know if it is an approved chemical for use in schools.
It has an orange dot on the container, but I have no information in the old CSIS or on the ASSIST List of recommended chemicals for science list. Thanks.
Ammonium thiocyanate deliquescent: Ammonium thiocyanate is becoming a liquid too fast. I kept it away from the light, but still had no results, and have also bought new jar recently.
Refrigerator: Is it safe to have a small refrigerator for keeping Bromine water and Iodine in a chem store.
Storage of copper powder: Could you please advice me how and where to keep this copper powder (Chem Supply) as in the SDS it has been marked as a DG 4.1 PGII?
Ammonium nitrate: Hi, Has anyone else had any trouble with ammonium nitrate absorbing water? Mine has become a clear mixture of liquid and crystals. The crystals are a solid lump that needs to be prodded to separate. It was suggested by one of my teachers to place it in the oven to dry it out. I'm not in favour of doing this procedure, and so I won't be taking his advice.
