Lanthanum(III) sulfide

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Lanthanum(III) sulfide
Names
IUPAC name
lanthanum(3+);trisulfide
Other names
Dilanthanum trisulfide, lanthanum sesquisulfide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.580 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 235-592-1
PubChem CID
  • InChI=1S/2La.3S/q2*+3;3*-2
    Key: YTYSNXOWNOTGMY-UHFFFAOYSA-N
  • [S-2].[S-2].[S-2].[La+3].[La+3]
Properties
La2S3
Molar mass 373.99 g·mol−1
Appearancereddish-yellow crystals
Density 4.9 g/cm3 [1]
Melting point 2,100 °C (3,810 °F; 2,370 K)
reacts with hot water
Hazards
GHS labelling:
GHS-pictogram-exclam.svg GHS-pictogram-flamme.svg
Structure
cubic
Related compounds
Other cations
Cerium(III) sulfide, Promethium(III) sulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Lanthanum(III) sulfide is a binary inorganic chemical compound of lanthanum metal and sulfur with the chemical formula La2S3. [2] [3] [4]

Contents

Synthesis

Lanthanum(III) sulfide can be prepared from the effect of sulfur vapor on metallic lanthanum:

2 La + 3 S → La2S3

It can also be prepared from the effect of hydrogen sulfide on lanthanum:

2 La + 3H2S → La2S3 + 3 H2

The effect of hydrogen sulfide on lanthanum oxide in the presence of reducing agents also produces lanthanum(III) sulfide:

La2O3 + 3 H2S + 3 C → La2S3 + 3 CO2 + 3 H2

Physical properties

Dilanthanum trisulfide forms reddish-yellow crystals of the cubic system, with space group I43d, and unit cell parameters a = 0.8706 nm. [5]

It does not dissolve in cold water.

Chemical properties

La2S3 + 6 H2O → 2 La(OH)3 + 3 HS
La2S3 + 3 HCl → 2 LaCl3 + 3 H2S
2 La2S3 + 9 O2 → 2 La2O3 + 6 SO2

Uses

La2S3 is used as a precursor to prepare complex compounds. It is also used in glass manufacturing and in optical fibers. [6]

Related Research Articles

<span class="mw-page-title-main">Hydrogen sulfide</span> Poisonous, corrosive and flammable gas

Hydrogen sulfide is a chemical compound with the formula H2S. It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. Swedish chemist Carl Wilhelm Scheele is credited with having discovered the chemical composition of purified hydrogen sulfide in 1777.

Sulfide (also sulphide in British English ) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen sulfide (H2S) and bisulfide (SH−) are the conjugate acids of sulfide.

<span class="mw-page-title-main">Zinc sulfide</span> Inorganic compound

Zinc sulfide is an inorganic compound with the chemical formula of ZnS. This is the main form of zinc found in nature, where it mainly occurs as the mineral sphalerite. Although this mineral is usually black because of various impurities, the pure material is white, and it is widely used as a pigment. In its dense synthetic form, zinc sulfide can be transparent, and it is used as a window for visible optics and infrared optics.

In chemistry, disproportionation, sometimes called dismutation, is a redox reaction in which one compound of intermediate oxidation state converts to two compounds, one of higher and one of lower oxidation states. The reverse of disproportionation, such as when a compound in an intermediate oxidation state is formed from precursors of lower and higher oxidation states, is called comproportionation, also known as symproportionation.

<span class="mw-page-title-main">Ammonium hydrosulfide</span> Chemical compound

Ammonium hydrosulfide is the chemical compound with the formula [NH4]SH.

<span class="mw-page-title-main">Iron(II) sulfide</span> Chemical compound

Iron(II) sulfide or ferrous sulfide is one of a family of chemical compounds and minerals with the approximate formula FeS. Iron sulfides are often iron-deficient non-stoichiometric. All are black, water-insoluble solids.

<span class="mw-page-title-main">Scandium(III) sulfide</span> Chemical compound

Scandium(III) sulfide is a chemical compound of scandium and sulfur with the chemical formula Sc2S3. It is a yellow solid.

Antimony pentasulfide is an inorganic compound of antimony and sulfur, also known as antimony red. It is a nonstoichiometric compound with a variable composition. Its structure is unknown. Commercial samples are contaminated with sulfur, which may be removed by washing with carbon disulfide in a Soxhlet extractor.

<span class="mw-page-title-main">Bismuth(III) sulfide</span> Chemical compound

Bismuth(III) sulfide is a chemical compound of bismuth and sulfur. It occurs in nature as the mineral bismuthinite.

Gallium lanthanum sulfide glass is the name of a family of chalcogenide glasses, referred to as gallium lanthanum sulfide (Ga-La-S) glasses. They are mixtures of La2S3, La2O3, and Ga2S3, which form the basic glass with other glass modifiers added as needed. Gallium-lanthanum-sulfide glasses have a wide range of vitreous formation centered around a 70% Ga2S3 : 30% La2S3 mixture, and readily accept other modifier materials into their structure. This means that Ga-La-S composition can be adjusted to give a wide variety of optical and physical properties.

<span class="mw-page-title-main">Gallium(III) sulfide</span> Chemical compound

Gallium(III) sulfide, Ga2S3, is a compound of sulfur and gallium, that is a semiconductor that has applications in electronics and photonics.

Gold(III) sulfide or auric sulfide is an inorganic compound with the formula Au2S3. Auric sulfide has been described as a black and amorphous solid. Only the amorphous phase has been produced, and the only evidence of existence is based on thermal analysis.

<span class="mw-page-title-main">Lanthanum(III) nitrate</span> Chemical compound

Lanthanum(III) nitrate is any inorganic compound with the chemical formula La(NO3)3·xH2O. It is used in the extraction and purification of lanthanum from its ores.

Tungsten trisulfide is an inorganic compound of tungsten and sulfur with the chemical formula WS3. The compound looks like chocolate-brown powder.

<span class="mw-page-title-main">Chromium(II) sulfide</span> Chemical compound

Chromium(II) sulfide is an inorganic compound of chromium and sulfur with the chemical formula CrS. The compound forms black hexagonal crystals, insoluble in water.

Neodymium(III) sulfide is a inorganic chemical compound with the formula Nd2S3 composed of a two neodymium atoms in the +3 oxidation state and three sulfur atoms in the -2 oxidation state. Like other rare earth sulfides, neodymium(III) sulfide is used as a high-performance inorganic pigment.

Actinium compounds are compounds containing the element actinium (Ac). Due to actinium's intense radioactivity, only a limited number of actinium compounds are known. These include: AcF3, AcCl3, AcBr3, AcOF, AcOCl, AcOBr, Ac2S3, Ac2O3, AcPO4 and Ac(NO3)3. Except for AcPO4, they are all similar to the corresponding lanthanum compounds. They all contain actinium in the oxidation state +3. In particular, the lattice constants of the analogous lanthanum and actinium compounds differ by only a few percent.

<span class="mw-page-title-main">Disulfur diiodide</span> Chemical compound

Disulfur diiodide is an unstable inorganic chemical compound with the chemical formula S2I2. It is a red-brown solid that decomposes above −30 °C to elemental sulfur and iodine.

Lanthanum oxysulfide is an inorganic compound, a salt of lanthanum and hydrogen sulfide acid, with the formula La
2O
2S.

<span class="mw-page-title-main">Lanthanum monosulfide</span> Chemical compound

Lanthanum monosulfide is a binary inorganic chemical compound of lanthanum metal and sulfur with the chemical formula LaS.

References

  1. ↑ "Lanthanum Sulfide". American Elements . Retrieved 27 July 2024.
  2. ↑ "Lanthanum (III) Sulfide (La2S3) Powder (CAS 12031-49-1)". samaterials.com. Retrieved 27 July 2024.
  3. ↑ "Lanthanum(III) sulfide | CAS 12031-49-1 | SCBT - Santa Cruz Biotechnology". scbt.com . Retrieved 27 July 2024.
  4. ↑ Bouroushian, Mirtat (23 April 2010). Electrochemistry of Metal Chalcogenides. Springer Science & Business Media. p. 32. ISBN   978-3-642-03967-6 . Retrieved 27 July 2024.
  5. ↑ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3548. ISBN   978-0-412-30120-9 . Retrieved 27 July 2024.
  6. ↑ "Lanthanum(III) sulfide, 99% (REO), Thermo Scientific Chemicals | Fisher Scientific". Fisher Scientific . Retrieved 27 July 2024.
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