What can sulphur be used for?
Depends on how much you have I suppose.You can use it in agriculture as a dressing to stop seeds rotting(ie potatoes).You can make castings with it by melting it and pouring into a mould.You can make gunpowder using sulphur , powdered charcoal and sodium or potassium nitrate;you can burn it in a greenhouse (or make a sulphur candle and burn that)to disinfect it.BEWARE if you or anyone with breathing problems breathes in sulphur dioxide there could be SERIOUS health problems.You no doubt know that dealing with gunpowder without experience could get you in ANY department of a hospital.