He used a magnifying glass to focus the sun’s rays on a sample of mercury(ll) oxide (HgO) to discover that heating this compound produced a gas, oxygen (O2). In this environment a mouse could live four times longer than normal. Theories based on Priestley’s work underpin modern chemistry.
Related resources:
Additional information
What happened today in chemistry? Explore 366 days of chemistry history at On This Day in Chemistry.
No comments yet