What is Titanium dioxide?
{{Chembox | Verifiedfields = sleep | Watchedfields = changed | verifiedrevid = 476992554 | Name = Titanium dioxide | ImageFile = Titanium(IV)_oxide.jpg | ImageSize = | ImageName = Titanium(IV) oxide | ImageFile1 = Rutile-unit-cell-3D-balls.png | ImageSize1 = | ImageName1 = The unit cell of rutile | IUPACName = Titanium dioxide<br/>Titanium(IV) oxide | OtherNames = Titania<br/>[[Rutile]]<br/>[[Anatase]]<br/>[[Brookite]] | SystematicName = | Section1 = {{Chembox Identifiers | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 24256 | UNII_Ref = {{fdacite|correct|FDA}} | UNII = 15FIX9V2JP | ChEMBL_Ref = {{ebicite|changed|EBI}} | ChEMBL = 1201136 | InChI = 1/2O.Ti/rO2Ti/c1-3-2 | InChIKey = GWEVSGVZZGPLCZ-TYTSCOISAW | ChEBI_Ref = {{ebicite|correct|EBI}} | ChEBI = 32234 | SMILES = O=[Ti]=O | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/2O.Ti | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = GWEVSGVZZGPLCZ-UHFFFAOYSA-N | CASNo = 13463-67-7 | CASNo_Ref = {{cascite|correct|CAS}} | PubChem = 26042 | RTECS = XR2775000 | KEGG_Ref = {{keggcite|changed|kegg}} | KEGG = C13409 }} | Section2 = {{Chembox Properties | Formula = {{chem|TiO|2}} | MolarMass = 79.866&nbsp;g/mol | Appearance = White solid | Odor = Odorless | Density = {{ubl | 4.23&nbsp;g/cm<sup>3</sup> (rutile) | 3.78&nbsp;g/cm<sup>3</sup> (anatase) }} | MeltingPtC = 1843 | BoilingPtC = 2972 | Solubility = Insoluble | BandGap = 3.05{{nbsp}}eV (rutile)<ref name=Nowotny>{{cite book |title=Oxide Semiconductors for Solar Energy Conversion: Titanium Dioxide |last=Nowotny |first=Janusz |date=2011 |publisher=CRC Press |isbn=9781439848395 |page=156 |url=https://books.google.com/books?id=AlTVUs3IlEwC&pg=PA156}}</ref> | RefractIndex = {{ubl | 2.488 (anatase) | 2.583 (brookite) | 2.609 (rutile) }} | MagSus = +5.9·10<sup>−6</sup>{{nbsp}}cm<sup>3</sup>/mol }} | Section3 = | Section4 = {{Chembox Thermochemistry | DeltaHf = −945&nbsp;kJ·