We take cubes of regular ice and cool them with liquid nitrogen. The ice made this way can be used to cool drinks and as long as you don't let the ice directly touch your mouth the drinks are safe. Once they warm back up to 0 degrees they can be treated exactly the same as regular ice. Alternatively, just use a straw when using ice of this type. ... https://www.youtube.com/watch?v=tXrRaeIhAds

This is a progress report on my current efforts into making sodium. This is not a standard how-to video. Related videos: Making sodium by the thermochemical dioxane process: https://www.youtube.com/watch?v=jCrFFVVcPUI "Progress report: Theory test": https://www.youtube.com/watch?v=D4vDwQ4TyIc ... https://www.youtube.com/watch?v=oiZf-O6vvbE

In this video we make hydrazine sulfate by the hypochlorite ketazine process. Warning: The reaction produces toxic gases and products. It also uses corrosive chemicals, gloves must be worn. Hydrazine sulfate is a useful substitute for the more dangerous pure liquid hydrazine in chemical reactions. Simply adding in a stoichiometric amount of base will release the hydrazine in-site and allow for it to be use in for such purposes as reductions, azotizations and various other synthetic uses. The process to make hydrazine sulfate is extremely simple: Start with 250mL of ammonia and add to it 100mL of methyl ethyl ketone. Stir and then slowly add 1/4 mole equivalent of sodium hypochlorite based bleach. if using 10% bleach then about 186g is needed. If using 6% household bleach about 310g is needed. As the bleach is added the reaction will heat up and bubble vigorously, slow down the addition if it's bubbling too much. After all the bleach is added, keep stirring until the mixture stops bubbling. Then stop stirring and allow it to stand for a few hours or so until it separates into two clear layers. The top layer is methyl ethyl ketazine. ... https://www.youtube.com/watch?v=UB7vwIFCnR0

We make sodium silicate from drain cleaner and those little gel beads you find packaged with electronic items for humidity control. The procedure is really simple, just make a solution of 10mL with 4-8grams of sodium hydroxide, use the full 8 grams if you want stoichiometric sodium silicate, and 4 grams if you want "liquid glass" solution for doing the chemical garden experiments. Heat the solution and add in 6 grams worth of crushed silica gel beads. The finer the better. if they aren't dissolving, you might need to add more water. Once it's dissolved, you'll have a concentrated solution of sodium silicate. For experiments using Sodium Silicate solution, check out these videos: ... https://www.youtube.com/watch?v=xltvwhogklI