“Snowfall in a bottle” experiment
How to make a snow “globe” with a bottle
What can you do if you want a winter wonderland, but outside the weather is gray and dreary? You can make a blizzard in a bottle!
Wear gloves and protective glasses. Observe safety rules in working with heating devices.
Reagents and equipment:
- 70 g ammonium chloride;
- empty bottle;
- hot plate or other heating device;
Sprinkle ammonium chloride into the beaker, add water and heat, so the salt dissolves completely. Then quickly pour the resulting solution into a bottle and leave to cool. Watch crystals falling that look like snowflakes.
When the temperature is raised, the solubility of certain salts increases. Ammonium chloride is one such salt. If we make a saturated solution of it at 80°C, i.e. if we dissolve the maximum possible amount of ammonium chloride in water (around 66g per 100g of water), then on cooling, part of the ammonium chloride will precipitate, because at room temperature the solubility of ammonium chloride is just 37 g per 100 g. The salt starts to precipitate in the form of beautiful crystals resembling snowflakes.