Thiocarbonic acid

Trithiocarbonic acid

Names
IUPAC name Carbonotrithioic acid
Systematic IUPAC name Trithiocarbonic acid
Other names Dithiocarbon sulfide Sulfocarbonic acid Thiocarbonic acid Trisulfocarbonic acid
Identifiers
CAS Number	594-08-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:36967 N
ChemSpider	62204 N
ECHA InfoCard	100.008.931
EC Number	209-822-6
MeSH	C013321
PubChem CID	68982
UNII	O27JHO40J8 Y
CompTox Dashboard (EPA)	DTXSID00862140
InChI InChI=1S/CH2S3/c2-1(3)4/h(H2,2,3,4) N Key: HIZCIEIDIFGZSS-UHFFFAOYSA-N N
SMILES C(=S)(S)S
Properties
Chemical formula	H2CS3
Molar mass	110.21 g·mol−1
Appearance	Red oily liquid, yellow crystalline solid
Density	1.483 g/cm3 (liquid)
Melting point	−26.8 °C; −16.3 °F; 246.3 K
Boiling point	58 °C; 136 °F; 331 K
Related compounds
Related compounds	Carbonic acid Thiosulfuric acid Thiocarbonate Xanthic acid Thioxanthate Ethyl xanthic acid Thiocyanic acid Thiocyanate Potassium trithiocarbonate Dimethyl trithiocarbonate Ethylene trithiocarbonate Thiourea Thiocarbamate Thiophosphoric acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Thiocarbonic acid is an acid with the chemical formula H₂CS₃ (or S=C(SH)₂). It is an analog of carbonic acid H₂CO₃ (or O=C(OH)₂), in which all oxygen atoms are replaced with sulfur atoms. It is an unstable hydrophobic red oily liquid.^[1]

It is often referred to as trithiocarbonic acid so as to differentiate it from other carbonic acids containing sulfur, such as monothiocarbonic O,O-acid S=C(OH)₂, monothiocarbonic O,S-acid O=C(OH)(SH), dithiocarbonic O,S-acid S=C(OH)(SH) and dithiocarbonic S,S-acid O=C(SH)₂ (see thiocarbonates).