LANTHANUM SULFIDE Property

Melting point:

2100-2150°C

Density 

4,911 g/cm³

form 

Powder

Specific Gravity

4.911

color 

Orange

Crystal Structure

Gd2S3 type

crystal system

Nogata

Space group

Pnma

Solubility Product Constant (Ksp)

pKsp: 12.7

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.766	0.422	1.595	90	90	90	0.5156

CAS DataBase Reference

12031-49-1

EPA Substance Registry System

Lanthanum sulfide (La2S3) (12031-49-1)

Safety

Risk Statements 

31-36/37/38

Safety Statements 

22-36/37/39

RIDADR 

UN3134

TSCA 

Yes

HazardClass 

4.3

PackingGroup 

III

HS Code 

2846901020

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H261In contact with water releases flammable gas

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P231+P232Handle under inert gas. Protect from moisture.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

LANTHANUM SULFIDE Chemical Properties,Usage,Production

Chemical Properties

red powder(s); there is a LaS2,12325-81-4, with -200 mesh of 99.9% purity [STR93] [CER91]

Uses

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.