Microwave

I can take a shot at it, if you can tell me the detailed application.

Thanks MechGuy

I would be heating porous non mettaic object along with sulfur powder untill the sulfur melts completely, the melting temprature of sulfur is around 125 degree which needs to be maintained for 2-3 Hrs , but the vessel will be exposed to waves every now & then with Molten Sulfur within for 2-3 or may be more hours,..... just trying an experiment, a mettalic or solid vessel seems to be best....I expect better pores filling by this method as complete air trapped can be eliminated....what's your idea

The question is why would you need a metallic vessel? Could you not use some kind of ceramic material in this case?

I dont mind using a Ceramic Material, as long as it can withstand molten sulfur within which may rise to 200 D cent. also & secondly the waves that it will be exposed now & then.

Can a completely black coated metallic vessel be used into microwave, without damaging the microwave for the purpose.

There are many ceramics which are inert to sulfur but porosity would be a problem as some sulfur would diffuse into your container.

A standard borosilicate glass should do the job. I thing pyrex is one brand name.

Steal one of your wife's glass casserole dishes when she's not looking. If she complains, buy her another and take her out to dinner.

Good luck