Editing Titanium tetrachloride (section)

{{short description|Inorganic chemical compound}}
{{Chembox
| Watchedfields = changed
| verifiedrevid = 470610882
| ImageFile= Sample of Titanium tetrachloride 01.jpg
| ImageSize = 250
| ImageFile1 = Titanium-tetrachloride-3D-vdW.png
| ImageFile1_Ref = {{chemboximage|correct|??}}
| ImageSize1 = 121
| ImageName1 = Spacefill model of titanium tetrachloride
| IUPACName = Titanium(IV) chloride
| OtherNames = Titanium tetrachloride <br/> Tetrachlorotitanium 
|Section1={{Chembox Identifiers
| CASNo = 7550-45-0
| CASNo_Ref = {{cascite|correct|CAS}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 8O3PJE5T7Q
| PubChem = 24193
| ChEBI = 231499
| ChemSpiderID = 22615
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| EINECS = 231-441-9
| UNNumber = 1838
| MeSHName = Titanium+tetrachloride
| RTECS = XR1925000
| SMILES = Cl[Ti](Cl)(Cl)Cl
| StdInChI = 1S/4ClH.Ti/h4*1H;/q;;;;+4/p-4
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| InChI = 1/4ClH.Ti/h4*1H;/q;;;;+4/p-4/rCl4Ti/c1-5(2,3)4
| StdInChIKey = XJDNKRIXUMDJCW-UHFFFAOYSA-J
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| InChIKey = XJDNKRIXUMDJCW-FOGBWSKZAG
}}
|Section2={{Chembox Properties
| Formula = {{chem2|TiCl4}}
| MolarMass = 189.679 g/mol
| Appearance = Colourless liquid
| Odor = penetrating acid odor
| Density = 1.726 g/cm<sup>3</sup>
| Solubility = reacts (exothermic hydrolysis)<ref>{{cite journal|last1=Eremenko|first1=B. V.|last2=Bezuglaya|first2=T. N.|last3=Savitskaya|first3=A. N.|last4=Malysheva|first4=M. L.|last5=Kozlov|first5=I. S.|last6=Bogodist|first6=L. G.|title=Stability of Aqueous Dispersions of the Hydrated Titanium Dioxide Prepared by Titanium Tetrachloride Hydrolysis|journal=Colloid Journal|date=2001|volume=63|issue=2|pages=173–178|doi=10.1023/A:1016673605744|s2cid=93971747}}</ref>
| SolubleOther = soluble in [[dichloromethane]],<ref>{{cite web|title=titanium(IV) chloride, 1M soln. in dichloromethane|url=https://www.alfa.com/en/catalog/H31830/|website=Alfa Aesar|access-date=7 March 2018}}</ref> [[toluene]],<ref>{{cite web|title=Titanium(IV) chloride solution 1.0 M in toluene|url=https://www.sigmaaldrich.com/catalog/product/sigald/345695|website=Sigma-Aldrich|access-date=7 March 2018}}</ref> [[pentane]]<ref>{{cite web|last1=Butts|first1=Edward H De|title=patent US3021349A|url=https://patents.google.com/patent/US3021349}}</ref>
| MeltingPtC = -24.1
| BoilingPtC = 136.4
| VaporPressure = 1.3 kPa (20&nbsp;°C)
| Viscosity = 827 μPa s
| RefractIndex = 1.61 (10.5&nbsp;°C)
| MagSus = &minus;54.0·10<sup>−6</sup> cm<sup>3</sup>/mol
}}
|Section3={{Chembox Structure
| Coordination = Tetragonal
| MolShape = Tetrahedral
| Dipole = 0 D
}}
|Section4={{Chembox Thermochemistry
| DeltaHf = −763&nbsp;kJ·mol<sup>−1</sup><ref name=b1>{{cite book| last= Zumdahl |first=Steven S.|title =Chemical Principles |edition=6th | publisher = Houghton-Mifflin| year = 2009| isbn = 978-0-618-94690-7|page=A23}}</ref>
| Entropy = 355&nbsp;J·mol<sup>−1</sup>·K<sup>−1</sup><ref name=b1/>
 }}
|Section5={{Chembox Hazards
| MainHazards = Toxic, corrosive, reacts with water to release [[hydrochloric acid|HCl]]
| ExternalSDS = [http://www.sciencelab.com/msds.php?msdsId=9925270 MSDS]
| Hazards_ref=<ref>{{cite web |title=Classifications - CL Inventory |url=https://echa.europa.eu/information-on-chemicals/cl-inventory-database/-/discli/details/3837 |website=echa.europa.eu}}</ref>
| GHSPictograms = {{GHS05}}{{GHS06}}{{GHS07}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|314|317|330|335|370|372}}
| PPhrases = {{P-phrases|280|301+330+331|304+340|305+351+338|308+310}}
| NFPA-H = 3
| NFPA-F = 0
| NFPA-R = 2
| NFPA-S = W
}}
|Section8={{Chembox Related
| OtherAnions = [[Titanium(IV) bromide]] <br/> [[Titanium(IV) fluoride]]<br/> [[Titanium(IV) iodide]]
| OtherCations = [[Hafnium(IV) chloride]] <br/> [[Zirconium(IV) chloride]]
| OtherCompounds = [[Titanium(II) chloride]] <br/> [[Titanium(III) chloride]]
}}
}}
[[File:Titanium tetrachloride phases.jpg|alt=clear crystals under a clear liquid at the bottom of a glass flask|right|thumb|Crystals of frozen titanium tetrachloride melting into the liquid]]
'''Titanium tetrachloride''' is the [[inorganic compound]] with the [[chemical formula|formula]] {{chem2|TiCl4}}. It is an important intermediate in the production of [[titanium]] metal and the pigment [[titanium dioxide]]. {{chem2|TiCl4}} is a [[Volatility (chemistry)|volatile]] liquid. Upon contact with humid air, it forms thick clouds of [[titanium dioxide]] ({{chem2|TiO2}}) and [[hydrochloric acid]], a reaction that was formerly exploited for use in smoke machines. It is sometimes referred to as "tickle" or "tickle 4", as a phonetic representation of the symbols of its molecular formula ({{chem2|TiCl4}}).<ref>[http://chlorine.americanchemistry.com/Science-Center/Chlorine-Compound-of-the-Month-Library/Titanium-Tetrachloride-Stepping-Stone-to-Amazing-Technology] {{Webarchive|url=https://web.archive.org/web/20130217024155/http://chlorine.americanchemistry.com/Science-Center/Chlorine-Compound-of-the-Month-Library/Titanium-Tetrachloride-Stepping-Stone-to-Amazing-Technology|date=2013-02-17}} [[American Chemistry Council]] – "Titanium Tetrachloride: Stepping Stone to Amazing Technology"</ref><ref>{{cite web |url=http://avogadro.chem.iastate.edu/MSDS/TiCl4.htm |title=Archived copy |access-date=2013-04-10 |url-status=dead |archive-url=https://web.archive.org/web/20140319063249/http://avogadro.chem.iastate.edu/MSDS/TiCl4.htm |archive-date=2014-03-19 }} [[Iowa State University]] – "Chemistry Material Safety Data Sheets"</ref>