Group Admins Group Mods Public Group active 3 months, 1 week agoDiscussions related to chemistry.HomeForumMembers 15Why sulfur compounds have a foul smell?Tagged: Garlic, Onion, Smell, SulfurThis topic contains 1 reply, has 2 voices, and was last updated by Kohel Tanwar 3 months, 2 weeks ago.Author PostsJune 15, 2017 at 13:34 #1396 Kareem AhmedParticipantSulfur compounds commonly have a very foul smell. As much I can remember some examples are as follows –H2SGarlicMarcaptanNaphthaleneRotten foodsOnionWhat can be the cause of such peculiar behavious in sulfur compounds?August 8, 2017 at 01:51 #1570 Kohel TanwarParticipantMy opinion is that, on putrefaction body proteins liberate H2S. As the organisms and their toxins are harmful to our health the nature has devised the mechanism to smell those compounds bad. Moreover not all sulfur compounds are foul smelling. So this generalization is not completely true.Author PostsYou must be logged in to reply to this topic.