In the papal conclave to elect a new pope, here's a look at what the color of smoke (black or white) means after each vote.

To the upper right we have very pure potassium chlorate, so much so that it bursts into flames when mixed with sugar and catalyzed with some sulfuric acid. [Mr. Home Scientist] produced the ...

Yan observed that longan trees near temples produced more fruit. He discovered that potassium chlorate — a chemical found in firecrackers — had flower-inducing properties, the institute said. However, ...

An easier, albeit vastly more expensive and dangerous alternative came in the 19th century when chemists discovered auto-ignition using a potassium chlorate mixture and sulfuric acid. This method ...