Date published: 2025-9-26

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Silver sulfide (CAS 21548-73-2)

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Alternate Names:
disilver sulfide
CAS Number:
21548-73-2
Molecular Weight:
247.80
Molecular Formula:
Ag2S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Silver sulfide is used in the production of copper-silver alloys, serves as an effective catalyst for organic synthesis, and is used in the manufacturing of optical imaging probes. One of its notable properties is its constant pressure coefficient of thermal expansion. Moreover, it exhibits excellent transport properties in both human serum and wastewater treatment processes. Due to its low redox potential, silver sulfide is used as an electron scavenger in wastewater treatment. Additionally, this compound can be used for the detection of specific bacteria, such as Staphylococcus aureus or Escherichia coli, through its binding to bacterial DNA under an x-ray diffraction data.


Silver sulfide (CAS 21548-73-2) References

  1. Silver sulfide nanoparticles sensitized titanium dioxide nanotube arrays synthesized by in situ sulfurization for photocatalytic hydrogen production.  |  Liu, X., et al. 2014. J Colloid Interface Sci. 413: 17-23. PMID: 24183425
  2. Silver sulfide nanoparticles (Ag2S-NPs) are taken up by plants and are phytotoxic.  |  Wang, P., et al. 2015. Nanotoxicology. 9: 1041-9. PMID: 25686712
  3. Nonstoichiometry of nanocrystalline monoclinic silver sulfide.  |  Sadovnikov, SI., et al. 2015. Phys Chem Chem Phys. 17: 12466-71. PMID: 25917058
  4. High retention of silver sulfide nanoparticles in natural soils.  |  Li, M., et al. 2019. J Hazard Mater. 378: 120735. PMID: 31203124
  5. A voltammetric investigation of the sulfidation of silver nanoparticles by zinc sulfide.  |  Lieb, HC., et al. 2020. Sci Total Environ. 720: 137685. PMID: 32325601
  6. Microwave Synthesis of Silver Sulfide and Silver Nanoparticles: Light and Time Influence.  |  Magalhães Sousa, D., et al. 2020. ACS Omega. 5: 12877-12881. PMID: 32548471
  7. Silver Sulfide Nanoparticles Reduce Nitrous Oxide Emissions by Inhibiting Denitrification in the Earthworm Gut.  |  Wu, J., et al. 2020. Environ Sci Technol. 54: 11146-11154. PMID: 32790293
  8. Bioaccumulation but no biomagnification of silver sulfide nanoparticles in freshwater snails and planarians.  |  Silva, PV., et al. 2022. Sci Total Environ. 808: 151956. PMID: 34843767
  9. Investigation of photoelectric behaviors of silver sulfide particles in different surroundings.  |  Dong, M., et al. 2021. RSC Adv. 12: 1028-1034. PMID: 35425132
  10. Direct cyanidation of silver sulfide by heterolytic C-CN bond cleavage of acetonitrile.  |  Das, B., et al. 2020. RSC Adv. 10: 8314-8318. PMID: 35497870
  11. Synthesis of silver sulfide nanoparticles and their photodetector applications.  |  Kang, MH., et al. 2018. RSC Adv. 8: 28447-28452. PMID: 35542471
  12. Polymorphic Phase Transformations in Nanocrystalline Ag2S Silver Sulfide in a Wide Temperature Interval and Influence of Nanostructured Ag2S on the Interface Formation in Ag2S/ZnS Heteronanostructure.  |  Valeeva, AA., et al. 2022. Nanomaterials (Basel). 12: PMID: 35630889
  13. Metal transfer to sediments, invertebrates and fish following waterborne exposure to silver nitrate or silver sulfide nanoparticles in an indoor stream mesocosm.  |  Clark, N., et al. 2022. Sci Total Environ. 850: 157912. PMID: 35952886
  14. Silver sulfide decorated carbonaceous sawdust/ES-PANI composites as salt-resistant solar steam generator.  |  Sadoun, AK., et al. 2022. RSC Adv. 12: 28843-28852. PMID: 36320508
  15. Large-Scale Silver Sulfide Nanomesh Membranes with Ultrahigh Flexibility.  |  Wang, Y., et al. 2022. Nano Lett. 22: 9883-9890. PMID: 36472408

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Silver sulfide, 5 g

sc-250983
5 g
$70.00

Silver sulfide, 25 g

sc-250983A
25 g
$267.00