Thursday, 21 April 2011
Cosmetic Chemistry at the Royal Institute
Owen and Anya made their own fizzling bath bombs and luxurious lip balms at a days course at the Royal Institute. They learnt a bit about acids, bases and solubility and created colourful grenades that burst open in a fanfare of fragrance and fizz. The days course cost around £12.
Basic recipe in two parts.
Dry ingredients: (By Weight , as measured on a scale.)
Baking Soda - 8 ounces
Citric Acid - 4 ounces
Corn Starch - 4 ounces
Salts - 4 ounces
Water - .75 tbsp
Essential or Fragrance Oil - 2 tsp (for these I used a Ginger Peach.)
Oil - 2.5 tbsp (I used cherry kernel, but any light vegetable oil will work.)
Food coloring - 1 or 2 drops.