Dysprosium disilicide

Dysprosium disilicide

Names
Other names Dysprosium silicide, dysprosium(II) silicide
Identifiers
CAS Number	12133-07-2  Y
3D model (JSmol)	Interactive image
ChemSpider	129556531
ECHA InfoCard	100.031.994
EC Number	235-207-7
PubChem CID	170843540
CompTox Dashboard (EPA)	DTXSID601310103
InChI InChI=1S/Dy.2Si Key: PEGILKWBIXTZFZ-UHFFFAOYSA-N
SMILES [Si].[Si].[Dy]
Properties
Chemical formula	DySi2
Molar mass	218.670 g·mol−1
Appearance	Dark gray crystals
Density	5.2 g/cm3
Melting point	1,550 °C (2,820 °F; 1,820 K)
Solubility in water	insoluble
Structure
Crystal structure	Orthorhombic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Dysprosium disilicide is a binary inorganic compound of dysprosium and silicon with the chemical formula DySi₂. ^{[1] [2] [3]}

Physical properties

Dysprosium disilicide forms dark gray crystals of orthorhombic system ^[4] with cell parameters a = 0.404 nm, b = 0.395 nm, and c = 1.334 nm.

Chemical properties

Dysprosium disilicide is characterized by high corrosion resistance. Eight-hour exposure in boiling water does not give any changes in the weight and appearance of the samples. The compound slowly oxidizes in air at temperatures above 1000 °C.

Uses

DySi₂ is a promising material for various applications, including advanced electronics, magnetic devices, and high-temperature coatings. ^[5]

References

1. "Dysprosium Disilicide Powder (DySi2)". samaterials.com. Retrieved 21 June 2025.
2. "CAS 12133-07-2 Dysprosium disilicide - Alfa Chemistry". alfa-chemistry.com. Retrieved 21 June 2025.
3. "Dysprosium(II) Silicide". American Elements . Retrieved 21 June 2025.
4. Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 162. ISBN   978-1-4398-1462-8 . Retrieved 21 June 2025.
5. Liu, B. Z.; Nogami, J. (1 January 2003). "A scanning tunneling microscopy study of dysprosium silicide nanowire growth on Si(001)". Journal of Applied Physics . 93 (1): 593–599. Bibcode:2003JAP....93..593L. doi:10.1063/1.1516621. ISSN   0021-8979 . Retrieved 21 June 2025.