Infographic on the smoke recipes used at the Papal Conclave. Historically, the conclave generated black smoke by burning tar or pitch with the ballots. Today, they use a mixture of potassium perchlorate, anthracene and sulfur. In the past, the conclave added wet straw to the burning ballots to generate white smoke. Today, they use a mixture of potassium chlorate, lactose and rosin (pine tree resin).
Eyes are on the Vatican this week for the selection of a new Pope 💭
Specific recipes are used for the black and white smoke released to indicate the result of conclave voting – here's a look at the chemicals involved: wp.me/p4aPLT-8St
#ChemSky 🧪