Thiocarbonic acid
Thiocarbonic acid is an inorganic acid which is related to carbonic acid. It is an unstable red oil with the chemical formula H2CS3. It is often referred to as trithiocarbonic acid so as to differentiate it from other thiocarbonates.It was first reported in brief by Zeise in 1824 and later in more detail by Berzelius in 1826, in both cases it was produced by the action of carbon disulfide on a hydrosulfide salt.
Treatment with acids liberates the thiocarbonic acid as a red oil
Both the acid and many of its salts are unstable and decompose via the release of carbon disulfide, particularly upon heating:Applications
Thiocarbonic acid currently has no significant applications. It's esters, which are sometimes called thioxanthates, find use in RAFT polymerization.
