Chemistry:Indium(II) chloride

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Indium(II) chloride
Names
Other names
Indium dichloride, dichloroindium
Identifiers
3D model (JSmol)
EC Number
  • 627-209-5
Properties
Cl2In
Molar mass 185.72 g·mol−1
Appearance colorless crystals
Density 3.46 g/cm3
Melting point 570 °C (1,058 °F; 843 K)
reacts with water
Related compounds
Related compounds
Tin(II) chloride, Indium(III) chloride
Hazards
GHS pictograms GHS07: Harmful
GHS Signal word Warning
H315, H319, H335
P261, P264, P271, P280, P302, P352, P305, P351, P338
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 inorganic compound, an indium metal salt and hydrochloric acid with the formula InCl
2
.[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 → InCl
2
+ H
2

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[InCl
4
]
.

Chemical properties

Indium(II) chloride reacts with water.[5]

  • Water catalyzes a disproportionation reaction:
3InCl
2
→ 2InCl
3
+ In
2InCl
2
→ InCl
3
+ InCl

Indium(II) chloride reacts with oxygen in the air when heated:

4InCl
2
+ O
2
→ 2InOCl + 2InCl
3

References