| The first stage is the production of a compound called an ozonide. |
| Ozonide, any of a class of chemical compounds formed by reactions of ozone with other compounds. |
| An excess of anhydrous potassium hydroxide was used to tie up the water formed by the synthesis reaction, thus preventing the reaction between water and potassium ozonide. |
| Ozone attacks a carbon-carbon double bond, initially making an ozonide, a hair-raising five-membered ring that has three oxygens in a row. |
