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Asked by year520yoga on 18 Mar 2025.
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Zoe Vance answered on 18 Mar 2025:
I can’t say I do a lot of potion making at work, though an experiment like the iodine snake definitely *looks* like some kind of potion
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Graeme Dykes answered on 20 Mar 2025:
Not sure that potions are real.
Chemists make solutions by dissolving salts in water or by dissolving organic compounds in solvents like ethanol or acetone.
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Will Breeze answered on 11 Jun 2025:
If you add food dye to water to get an interesting colour you then can put it in an interesting looking flask. The most interesting are the Erlenmeyer flask which looks like a glass cone, or the Boiling vessel which looks like a glass ball with a spout.
The secret is to add a few bits of dry ice. Dry ice is solid carbon dioxide and is very cold (-80oC), when heated to room temperature this goes straight from a solid to a gas (the technical term for this is called ‘sublimation’). This will cause your coloured liquid to bubble and ‘smoke’ as a grey mist will flow out of the fluid (concentrated CO2 gas). If you add a few drops of washing up liquid the bubbles will flow over the sides of the container.
If you want to have a colour changing potion you can use a pH indicator as a dye. When you add dry ice some of the carbon dioxide will dissolve in the water making it more acidic, changing the colour of your potion.
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