Indium(II) chloride

Indium(II) chloride
Names
	Other names Indium dichloride, dichloroindium
Identifiers
CAS Number	13465-11-7;
3D model (JSmol)	Interactive image; Interactive image;
ECHA InfoCard	100.155.590
EC Number	627-209-5;
PubChem CID	139207;
	InChI InChI=1S/2ClH.In/h2*1H;/q;;+2/p-2 Key: VOWMQUBVXQZOCU-UHFFFAOYSA-L;
	SMILES Cl[In]Cl; [In+].[In+3].[Cl-].[Cl-].[Cl-].[Cl-];
Properties
Chemical formula	Cl2In
Molar mass	185.72 g·mol−1
Related compounds
Related compounds	Tin(II) chloride, Indium(III) chloride
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302, P305, P338, P351, P352
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Indium(II) chloride is an hypothetical inorganic compound with the formula InCl₂. Its existence have been disproved and the substance claimed to be indium(II) chloride is a mixture of various indium subchlorides.

History

Indium(II) chloride was first reported to be produced in 1888 by Lars Fredrik Nilson who claimed to have produced indium(II) chloride from the reaction of indium metal and hydrogen chloride gas at 200 °C.^[1] However, this has been called into doubt as characterization by X-ray diffraction and NMR failed.

In 1983, an investigation found that the solid claimed to be indium(II) chloride is actually a 5:1 mixture of In₅Cl₉, alternatively formulated In₃[In₂Cl₉], and InCl₃.^[2]

References

^ Lars Fredrik Nilson; Sven Otto Pettersson (1888). "Über zwei neue Indiumchloride und über die Dampfdichte der Chloride von Indium, Gallium, Eisen und Chrom". Zeitschrift für Physikalische Chemie (in German). 2 (1): 657–675. doi:10.1515/zpch-1888-0278.
^ Gerd Meyer; Roger Blachnik (1983). "Neue Untersuchungen an gemischtvalenten Indium(I, III)- chloriden: Das Phasendiagramm In/Cl im Bereich 30–50 mol-% In und die Kristallstruktur von In5Cl9". Zeitschrift für anorganische und allgemeine Chemie (in German). 503: 126–132. doi:10.1002/zaac.19835030813.

[1] Lars Fredrik Nilson; Sven Otto Pettersson (1888). "Über zwei neue Indiumchloride und über die Dampfdichte der Chloride von Indium, Gallium, Eisen und Chrom". Zeitschrift für Physikalische Chemie (in German). 2 (1): 657–675. doi:10.1515/zpch-1888-0278.

[2] Gerd Meyer; Roger Blachnik (1983). "Neue Untersuchungen an gemischtvalenten Indium(I, III)- chloriden: Das Phasendiagramm In/Cl im Bereich 30–50 mol-% In und die Kristallstruktur von In5Cl9". Zeitschrift für anorganische und allgemeine Chemie (in German). 503: 126–132. doi:10.1002/zaac.19835030813.

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