Indium(II) chloride is an inorganic compound, an indium metal salt and hydrochloric acid with the formula InCl2.[1][2][3] The compound forms colorless crystals, reacts with water.[4] This is one of three known indium chlorides.
Synthesis
Indium(II) chloride can be produced via the effect of dry hydrogen chloride on indium metal at 2000 °C:
- In + 2HCl → InCl2 + H2
Physical properties
Indium(II) chloride forms colorless diffuse crystals of rhombic shape, lattice cell parameters a = 0.964 nm, b = 1.054 nm, c = 0.685 nm, Z = 8.
The molecules are dimers and have a structure In[InCl4].
Chemical properties
Indium(II) chloride reacts with water.[5]
- Water catalyzes a disproportionation reaction:
- 3InCl2 → 2InCl3 + In
- 2InCl2 → InCl3 + InCl
Indium(II) chloride reacts with oxygen in the air when heated:
- 4InCl2 + O2 → 2InOCl + 2InCl3
References
- ^ Kowalik, Patrycja; Bujak, Piotr; Penkala, Mateusz; Maroń, Anna M.; Ostrowski, Andrzej; Kmita, Angelika; Gajewska, Marta; Lisowski, Wojciech; Sobczak, Janusz W.; Pron, Adam (25 January 2022). "Indium(II) Chloride as a Precursor in the Synthesis of Ternary (Ag–In–S) and Quaternary (Ag–In–Zn–S) Nanocrystals". Chemistry of Materials. 34 (2): 809–825. doi:10.1021/acs.chemmater.1c03800. ISSN 0897-4756. PMC 8794001. PMID 35095188.
- ^ "Indium(II) chloride". Sigma Aldrich. Retrieved 3 April 2023.
- ^ "Indium(II) Chloride". American Elements. Retrieved 3 April 2023.
- ^ "Indium(II) chloride (CAS 13465-11-7)". scbt.com. Retrieved 3 April 2023.
- ^ Haynes, William M. (22 June 2016). CRC Handbook of Chemistry and Physics. CRC Press. p. 4-66. ISBN 978-1-4987-5429-3. Retrieved 3 April 2023.