calcine

This metal readily parts with its phlogiston, so as to be very subject to calcine, or rust, by exposure to the air.

Heat gently with a Bunsen burner until the sulphur burns, and then calcine until no more sulphurous oxide comes off.

Calcine, with occasional stirring, until no odour of sulphurous oxide can be detected.

Some vanners calcine their samples before commencing to van.

Transfer the filter and its contents to an E Battersea crucible, and calcine it for a few minutes.