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SCANDIUM SULFIDE

CAS No.
12166-29-9
Chemical Name:
SCANDIUM SULFIDE
Synonyms
SCANDIUM SULFIDE;scandium(III) sulfide;discandium trisulphide;SCANDIUM(III) SULFIDE, 99.99%;Scandium (III) sulfide, 99.9% (metals basis)
CBNumber:
CB0755230
Molecular Formula:
H2SSc
Crystal structure
scandium-sulfide crystal structure
Molecular Weight:
79.03
MDL Number:
MFCD00054036
MOL File:
12166-29-9.mol
Last updated:2025-12-31 14:38:37
Product description Number Pack Size Price
SCANDIUM SULFIDE 95.00% ING0026157 5MG $451.35
Scandium sulfide, 99.9% (REO) 99.9% (REO) S2118 1gm $57
Scandium sulfide, 99.9% (REO) 99.9% (REO) S2118 5gm $269
More product size

SCANDIUM SULFIDE Properties

Melting point 1775°C
Density 2.910
form yellow orthorhombic crystals
color yellow orthorhombic crystals, crystalline
crystal system Nogata
Space group Fddd
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
1.0410.7382.2059090901.694
EPA Substance Registry System Scandium sulfide (Sc2S3) (12166-29-9)

SAFETY

Risk and Safety Statements

TSCA  TSCA listed

SCANDIUM SULFIDE price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation ING0026157 SCANDIUM SULFIDE 95.00% 12166-29-9 5MG $451.35 2021-12-16 Buy
Rare Earth Products S2118 Scandium sulfide, 99.9% (REO) 99.9% (REO) 12166-29-9 1gm $57 2021-12-16 Buy
Rare Earth Products S2118 Scandium sulfide, 99.9% (REO) 99.9% (REO) 12166-29-9 5gm $269 2021-12-16 Buy
Product number Packaging Price Buy
ING0026157 5MG $451.35 Buy
S2118 1gm $57 Buy
S2118 5gm $269 Buy

SCANDIUM SULFIDE Chemical Properties,Uses,Production

Preparation

Scandium(III) sulfide, Sc2S3, is a yellow solid. Metal sulfides are typically prepared by heating mixtures of the two elements, but in the case of scandium, this method results in the formation of scandium monosulfide, ScS. Sc2S3 can be produced by heating scandium(III) oxide under flowing hydrogen sulfide in a graphite crucible to 1550℃ or higher for 2-3 hours. The crude product is subsequently purified by chemical vapor transport at 950℃  utilizing iodine as the transport agent.
Sc2O3+3H2S→Sc2S3 +3H2O

Structure and conformation

The crystal structure of Sc2S3 is similar to that of sodium chloride, in that it is based on a cubic close-packed array of anions. While NaCl has all the octahedral interstices in the anion lattice occupied by cations, Sc2S3 has one-third of them vacant. The vacancies are ordered, but in a very complicated pattern, resulting in a large, orthorhombic unit cell belonging to the space group Fddd. Above 1100℃, Sc2S3 loses sulfur, resulting in nonstoichiometric compounds such as Sc1.37S2.

SCANDIUM SULFIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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SCANDIUM SULFIDE discandium trisulphide SCANDIUM(III) SULFIDE, 99.99% Scandium (III) sulfide, 99.9% (metals basis) scandium(III) sulfide 12166-29-9 S3Sc2