Not everybody has the ability to smell elemental sulfur. Some will say it's odorless, or has a very slight odor; others (me, for example) will tell you it has a very distinctive, slightly sweet odor. It's probably genetic - some people have a receptor for it and others don't. read more
Powdered sulfur has a very light odor, similar to matches, that is due to its slow oxidation in air. For very demanding applications, you can activate sulfur by heating it under vacuum to remove any traces of moisture or entrenched oxidation products (SO2 and SO3). read more