Chemical name: Barium Sulfide.
Synonyms: barium sulphide
Molecular formula: BaS
CAS No: 21109-95-5
Appearance: colourless crystals, or white to grey-brown powder,
with an odour of hydrogen sulfide
Stable, but decomposes on heating. Incompatible with acids, oxidizing
Harmful by ingestion or inhalation. Acts as a depilatory. Caustic.
Typical OES 0.5 mg/m3.