// Definition
A potentially explosive compound formed when concentrated limonene reacts with oxygen in air, inserting an oxygen molecule between carbon and hydrogen bonds. Can detonate when set down on a counter if concentration is sufficient.
// From the Episode
Dr. Mark taught Horatio Delbert to test for hydroperoxides using starch-iodine paper (potassium iodide indicator that turns colored when oxidized). Critical safety concern for anyone concentrating limonene as a cannabis solvent. Analogous to why diethyl ether is not stored in glass — it also forms hydroperoxides.