Cerium sulfide include cerium(III) sulfide and cerium monosulfide, which are both rare earth metal sulfides. Dicerium trisulphide and cerium mosulfide are both yellow powder of cubic crystal system. Cerium hydride (CeH3) is the raw material Cerium Sulfide CAS No.:12014-93-6 EC No.:234-603-7 Molecular Formula:Ce2S3 Molecular Weight:376.43 Density:5.9 Melting Point:2445 UN 3134 4.3/PG 3 CAS No.:12014-82-3 EC No.:234-600-0 Molecular Formula:CeS Molecular Weight:172.181 Density:5.9 Melting Point:2445 -