botanyshitposts:
yesterday in economic botany we were learning about plant based oil compounds and...
yesterday in economic botany we were learning about plant based oil compounds and stuff and my botany professor was talking about lynn seed oil, which in woodworking is rubbed on over furniture as a varnish. this oil has an exothermic chemical reaction with oxygen, meaning that the reaction creates heat. what often happens, apparently, is that woodworkers will finish rubbing on the oil with a rag and then will ball up the rag and throw it away, but because the reaction is taking place and the heat can’t escape (like it would on a piece of furniture where it can be cooled) it gets trapped in the rag, which gets hotter and hotter until it reaches the temperature where it bursts into flame. apparently many woodworking shops have been burned down by this. the proper way to dispose of rags with this oil is to hang them up on a clothesline, so again the reaction never gets enough heat to start a fire. im telling you this because im a writer and ive never heard of substance that will just…spontaneously combust conveniently like that so long as it’s in a confined space. my botany professor tried it in a trash can in his driveway and it did indeed burst into flame after 45 minutes, which is an exceptionally convenient time delay. im sorry im tying this so fast my laptop is on 2% battery and theres no outlet an
