The Vespiary

The Hive => Newbee Forum => Topic started by: Drug_Phreak on September 02, 2004, 01:59:00 AM

Title: "Dry Over"
Post by: Drug_Phreak on September 02, 2004, 01:59:00 AM
When a recipe says to dry a solvent over a certain solid does that mean to put the solvent in a desiccator with that solid on the bottom? I've read that desiccators should be used to keep solvents dry and shouldn't be used to actually dry solvents, but what I read might be wrong. Is this true?

Title: Incorrect. Liquids are dried as in this post:
Post by: Rhodium on September 02, 2004, 03:52:00 AM

Post 439332 (https://www.thevespiary.org/talk/index.php?topic=5770.msg43933200#msg43933200)

(GC_MS: "Purification of laboratory chemicals: drying", Chemicals & Equipment)


Title: Good read... thanks Rhodium.
Post by: Drug_Phreak on September 02, 2004, 10:48:00 AM
Good read... thanks Rhodium. I have another question... I have a container of calcium chloride and I was wondering if I could put some of it in the oven for a while to make it anhydrous or do I need to buy it in anhydrous form? Anyone know?