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Barium sulfide - Wikipedia
Barium sulfide | BaS | CID 6857597 - PubChem
Barium Sulfides - an overview | ScienceDirect Topics
barium sulphide - NIST Chemistry WebBook
Barium sulfide - Simple English Wikipedia, the free encyclopedia
barium sulphide - NIST Chemistry WebBook
Barium sulfide | BaS - ChemSpider
Barium sulfide | chemical compound | Britannica
WebElements Periodic Table » Barium » barium sulphide
Barium sulfide - chemeurope.com