barium sulfate 233.391 233.857 A metal sulfate with formula BaO4S. Virtually insoluble in water at room temperature, it is mostly used as a component in oil well drilling fluid it occurs naturally as the mineral barite. BaO4S BaSO4 Baritop Barosperse Barotrast CAS:7727-43-7 CHEBI:133326 E-Z-Paque Enamel White EneCat EneMark EntroBar Esophotrast InChI=1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 KEGG:D02052 Liquipake Macropaque Micropaque Microtrast PMID:22831859 PMID:25710096 PMID:26903568 Pigment White 22 Radiobaryt Radiopaque Readi-CAT Reaxys:11343139 TZCXTZWJZNENPQ-UHFFFAOYSA-L Wikipedia:Barium_sulfate [O-]S([O-])(=O)=O.[Ba+2] barite barium sulfate blanc fixe chebi_ontology sulfuric acid, barium salt (1:1) metal sulfate barium salt