How to make soap bubbles
Making soap bubbles at home
How can you make soap bubbles using vegetable oil? You just need a little patience and some drain cleaner!
Wear protective gloves, eyewear, and a mask. Perform this experiment in a well-ventilated area. Observe safety precautions when working with fire.
Reagents and equipment
- 10 mL vegetable oil;
- 10 mL glycerin;
- 30 mL drain cleaner;
- glass beaker;
Combine 10 mL glycerin, 10 mL vegetable oil, and 30 mL drain cleaner in the beaker. Mix thoroughly, cover with a lid, and bring to a boil. Let simmer 1 hour. Mix the result with water. Insert a straw and blow air through the straw. You’ve made your soap bubbles!
Vegetable oil consists of glycerin compounds and fatty acids. Sodium hydroxide (drain cleaner) destroys these compounds, forming fatty acid salts. These fatty acid salts have surfactant properties and thus make the water foam.