mercaptide

A mercaptide is a chemical compound derived from or related to a mercaptan. Mercaptans are also known as thiols, which are sulfur analogs of alcohols. The prefix "mercapto-" is used when the -SH group is a substituent.123

Mercaptides are formed when thiols react with heavy metal salts, such as those of mercury, lead, silver, or copper. These mercaptides are typically insoluble in water but soluble in organic solvents. The formation of lead mercaptide is used in the "doctor test" to detect thiols in petroleum products.2

Thiols themselves have various applications, including as odorants for natural gas leaks, accelerators in rubber vulcanization, and corrosion inhibitors. Some thiols are found naturally and contribute to the aromas of foods like coffee and garlic, while others, like those found in skunk spray, have strong, unpleasant odors.23