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Lanthanum(III) sulfide is used as a precursor in the production of gallium lanthanum sulfide and strontium lathanum sulfide. It is also used in glass manufacturing. It is doped with other metals and used in optical fibers. It is also used as optical switching, high power-delivery, acousto-optic devices, air-guiding fibers, fiber sensors and mid-IR devices.
Patil, S. J.; Lokhande, C. D. Fabrication and performance evaluation of rare earth lanthanum sulfide film for supercapacitor application: Effect of air annealing. Mater. Des. 2015, 87, 939-948.
Andreev, O. V.; Monina, L. N. Acidities of 3d and 4f element sulfides are the key factor governing the type of phase diagram in MS-Ln2S3 (M= Mn, Fe; Ln= La-Lu) systems. Russ. J. Inorg. Chem. 2014, 59 (9), 971-978.
Hazard Statements: H261-H315-H319-H335
In contact with water releases flammable gas. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P231+P232-P261-P280a-P305+P351+P338-P405-P501a
Handle under inert gas. Protect from moisture. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.