Date published: 2026-2-28

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Calcium silicide (CAS 12013-56-8)

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CAS Number:
12013-56-8
Purity:
≥95%
Molecular Weight:
96.25
Molecular Formula:
CaSi2
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Calcium silicide is a compound that functions as a powerful deoxidizer and desulfurizing agent in metallurgical processes. When added to molten steel or iron, it reacts with oxygen and sulfur, forming calcium oxide and calcium sulfide. This reaction helps to remove impurities from the metal, resulting in a cleaner and more refined final product. Calcium silicide is used as a nucleating agent in the production of cast iron, where it promotes the formation of graphite flakes, improving the mechanical properties of the material. At the molecular level, calcium silicide interacts with the impurities present in the metal, forming stable compounds that can be easily removed, thus enhancing the quality of the metal. Its mode of action involves the formation of stable compounds with oxygen and sulfur, leading to their removal from the molten metal, ultimately contributing to the production of high-quality steel and iron products.


Calcium silicide (CAS 12013-56-8) References

  1. Leaching of aluminum and iron from boiler slag generated from a typical Chinese Steel Plant.  |  Li, J., et al. 2009. J Hazard Mater. 166: 1096-101. PMID: 19157693
  2. Chemical and physical characterisation of welding fume particles for distinguishing from gunshot residue.  |  Brożek-Mucha, Z. 2015. Forensic Sci Int. 254: 51-8. PMID: 26188699
  3. Silicene Quantum Dots: Synthesis, Spectroscopy, and Electrochemical Studies.  |  Hu, P., et al. 2018. Langmuir. 34: 2834-2840. PMID: 29397732
  4. Radiation-Stimulated Formation of Two-Dimensional Structures Based on Calcium Silicide.  |  Zinovieva, AF., et al. 2022. Nanomaterials (Basel). 12: PMID: 36296813
  5. Chemical bond and electronic states in calcium silicides: Theory and comparison with synchrotron-radiation photoemission.  |  Bisi, O., et al. 1989. Phys Rev B Condens Matter. 40: 10194-10209. PMID: 9991564
  6. Empty electronic states of calcium silicides: An inverse-photoemission investigation in the ultraviolet photon range.  |  Chemelli, C., et al. 1989. Phys Rev B Condens Matter. 40: 10210-10217. PMID: 9991565
  7. Silicon valence states in calcium silicides: A Si L2,3VV Auger line-shape analysis.  |  Calliari, L., et al. 1990. Phys Rev B Condens Matter. 41: 7569-7575. PMID: 9993049

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Calcium silicide, 250 g

sc-239471
250 g
$115.00