Titanium(II) chloride

Titanium(II) chloride

Identifiers
CAS Number	10049-06-6 N
3D model (JSmol)	Interactive image
ChemSpider	8466246 Y
ECHA InfoCard	100.030.137
EC Number	233-164-9
PubChem CID	66228
UNII	BK26WI342Q Y
CompTox Dashboard (EPA)	DTXSID3064930
InChI InChI=1S/2ClH.Ti/h2*1H;/q;;+2/p-2 Y Key: ZWYDDDAMNQQZHD-UHFFFAOYSA-L Y InChI=1/2ClH.Ti/h2*1H;/q;;+2/p-2 Key: ZWYDDDAMNQQZHD-NUQVWONBAH
SMILES [Ti+2].[Cl-].[Cl-]
Properties
Chemical formula	Cl2Ti
Molar mass	118.77 g·mol−1
Appearance	black hexagonal crystals
Density	3.13 g/cm3
Melting point	1,035 °C (1,895 °F; 1,308 K)
Boiling point	1,500 °C (2,730 °F; 1,770 K)
Magnetic susceptibility (χ)	+570.0·10−6 cm3/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	pyrophoric
GHS labelling:[1]
Pictograms
Signal word	Danger
Hazard statements	H250, H314
Precautionary statements	P210, P222, P260, P264, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P363, P370+P378, P405, P422
Safety data sheet (SDS)	External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Titanium(II) chloride is the chemical compound with the formula TiCl₂. The black solid has been studied only moderately, probably because of its high reactivity.^[2] Ti(II) is a strong reducing agent: it has a high affinity for oxygen and reacts irreversibly with water to produce H₂. The usual preparation is the thermal disproportionation of TiCl₃ at 500 °C. The reaction is driven by the loss of volatile TiCl₄:

2 TiCl₃ → TiCl₂ + TiCl₄

The method is similar to that for the conversion of VCl₃ into VCl₂ and VCl₄.

TiCl₂ crystallizes as the layered CdI₂ structure. Thus, the Ti(II) centers are octahedrally coordinated to six chloride ligands.^[3][4]