What is Hydrogen sulfide?
{{Chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 477313464 | ImageFile1 = Hydrogen-sulfide-2D-dimensions.svg | ImageFile1_Ref = {{chemboximage|correct|??}} | ImageSize1 = 170 | ImageName1 = Skeletal formula of hydrogen sulfide with two dimensions | ImageFileL1 = Hydrogen-sulfide-3D-balls.png | ImageNameL1 = Ball-and-stick model of hydrogen sulfide | ImageFileR1 = Hydrogen-sulfide-3D-vdW.svg | ImageFileR1_Ref = {{chemboximage|correct|??}} | ImageNameR1 = Spacefill model of hydrogen sulfide | SystematicName = Hydrogen sulfide<ref>{{cite web|title = Hydrogen Sulfide - PubChem Public Chemical Database|url = https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=402&loc=ec_rcs|work = The PubChem Project|location = USA|publisher = National Center for Biotechnology Information}}</ref> | OtherNames = {{ubl|Dihydrogen monosulfide|Dihydrogen sulfide|Sewer gas|Sulfane|Sulfurated hydrogen|Sulfureted hydrogen|Sulfuretted hydrogen|Sulfur hydride|Hydrosulfuric acid|Hydrothionic acid|Thiohydroxic acid|Sulfhydric acid}} |Section1={{Chembox Identifiers | CASNo = 7783-06-4 | CASNo_Ref = {{cascite|correct|CAS}} | PubChem = 402 | ChemSpiderID = 391 | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | UNII = YY9FVM7NSN | UNII_Ref = {{fdacite|correct|FDA}} | EINECS = 231-977-3 | UNNumber = 1053 | KEGG = C00283 | KEGG_Ref = {{keggcite|correct|kegg}} | MeSHName = Hydrogen+sulfide | ChEBI_Ref = {{ebicite|correct|EBI}} | ChEBI = 16136 | ChEMBL = 1200739 | ChEMBL_Ref = {{ebicite|changed|EBI}} | RTECS = MX1225000 | Beilstein = 3535004 | Gmelin = 303 | 3DMet = B01206 | SMILES = [H]S[H] | StdInChI = 1S/H2S/h1H2 | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | InChI = 1/H2S/h1H2 | StdInChIKey = RWSOTUBLDIXVET-UHFFFAOYSA-N | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | InChIKey = RWSOTUBLDIXVET-UHFFFAOYAJ }} |Section2={{Chembox Properties | H=2 | S=1 | Appearance = Colorless gas | Odor = Rotten eggs | Density = 1.363 g dm<sup>−3</sup> | MeltingPtC = −82 | BoilingPtC = −60 | Solubility =