Elemental yellow sulfur itself is almost odorless, but many sulfur compounds have strong odors. [[Hydrogen sulfide]] has the offensive odor of rotten eggs. The mercaptan family of compounds that give [[skunk]]s their odor, and which are deliberately added to natural gas because they can be detected in extremely low concentrations, are organic sulfur compounds, as is the compounds that give garlic and onions their smell. | Elemental yellow sulfur itself is almost odorless, but many sulfur compounds have strong odors. [[Hydrogen sulfide]] has the offensive odor of rotten eggs. The mercaptan family of compounds that give [[skunk]]s their odor, and which are deliberately added to natural gas because they can be detected in extremely low concentrations, are organic sulfur compounds, as is the compounds that give garlic and onions their smell. |