Identifiers | |
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3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.030.137 |
EC Number |
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PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
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) |
+570.0·10−6 cm3/mol | |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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pyrophoric |
GHS labelling:[1] | |
Danger | |
H250, H314 | |
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).
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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:
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]