Every year our department hosts a “Chemistry Magic Show,” in an effort to boost enrolment in the four-year science program. Largely run by undergraduate chemistry majors, the show is a series of demonstrations ranging from the colourful to the pyrophoric. Sneakily, there’s a lot of basic chemistry information between the explosions, making it educational as well as entertaining.
Thanks to a link from Cheersical Education I recently discovered NurdRage, who has created a little over a hundred demonstrations of chemistry magic. In keeping with the theme of this blog I’ll highlight the videos which focus on procedures and techniques.
Lab Equipment: Glass Ampuoles
How to make a Dessicator Bag for Drying Chemicals
How to Purify by Recrystallization (~10g scale)
A few videos create valuable (and hazardous) reagents:
Make Potassium Metal
How to Coalesce Potassium
Make Hydrazine Sulfate by the Hypochlorite-Ketazine Process
Make Hydrochloric Acid (sodium chloride/bisulfite process) 
And for fun:
Make Elephant Toothpaste
Alright, that’s a wrap. Now, if anyone needs me I’ll be playing with my 100 foot glowstick.
 There are a lot of different ways to make anhydrous HCl. If your solvent is protic slowly adding AcCl with ice cooling is usually the easiest way to go.