Description
Nanopowder , <100 nm particle size, 99.5% trace metals basis
Synonyms
Titanium dioxide
IUPAC Name
dioxotitanium;
Molecular Weight
79.87 g/mol
Molecular Formula
TiO2
InChI
1S/2O.Ti
InChI Key
GWEVSGVZZGPLCZ-UHFFFAOYSA-N
Boiling Point
>200 °C
Melting Point
1825 °C (lit.)
Flash Point
Not applicable
Purity
nanopowder,<100 nmparticlesize, 99.5% tracemetals basis
Density
4.17 g/mL at 25 °C (lit.)
Solubility
less than 1 mg/mL at 68° F (NTP, 1992);Insoluble in water and organic solvents. Dissolves slowly in hydrofluoric acid and in hot concentrated sulphuric acid.;Insoluble in water;Soluble in hot concentrated sulfuric acid; in hydrofluoric acid; insoluble in hydrochloric acid, nitric acid or diluted sulfuric acid;INSOL IN ORG SOLVENTS;SOLUBLE IN ALKALI;Solubility in water: none;Insoluble;
Appearance
nanopowder
Storage
2-8°C
Assay
99.5% trace metals basis
Color Form
White, tetragonal crystals;White powder in two crystalline forms, anatase and rutile;AMORPHOUS, INFUSIBLE POWDER;White powder;
Complexity
18.3
Covalently-Bonded Unit Count
1
EC Number
215-282-2
Exact Mass
79.938g/mol
H-Bond Acceptor
2
Heavy Atom Count
3
ICSC Number
0338
MDL Number
MFCD00011269
Monoisotopic Mass
79.938g/mol
NSC Number
15204
Odor
Odorless;
Other Experimental
GRAVIMETRIC FACTOR: 0.33279;ANATASE: INDEX OF REFRACTION (NA): 2.554; 2.493; SPECIFIC GRAVITY: 3.84; BROOKITE: INDEX OF REFRACTION (NA): 2.583; 2.586; 2.741; SPECIFIC GRAVITY: 4.17 RUTILE: SPECIFIC GRAVITY: 4.26; INDEX OF REFRACTION (NA): 2.616; 2.903;Reactivity depends on previous heat treatment; prolonged heating produces less soluble material; made soluble by fusion with potassium bisulfate or alkali hydroxides or carbonates to form alkali titanates; Index of refraction: 2.7 (Titania crystals);RUTILE: X-RAY CRYSTALLOGRAPHIC DATA: CRYSTAL SYSTEM: TETRAGONAL; SPACE GROUP: P4/MNM(136); 2 G FORMULA WT/UNIT CELL; X-RAY CRYSTALLOGRAPHIC DATA: AO= 4.5937 + OR - 0.0005; CO= 2.9618 + OR - 0.0010;ANATASE: X-RAY CRYSTALLOGRAPHIC DATA: CRYSTAL SYSTEM: TETRAGONAL; SPACE GROUP: I41/AMD(141); 4 G FORMULA WT/UNIT CELL X-RAY CRYSTALLOGRAPHIC DATA: AO= 3.785 + OR - 0.002; CO= 9.514 + OR - 0.006;BROOKITE: X-RAY CRYSTALLOGRAPHIC DATA: CRYSTAL SYSTEM: ORTHORHOMBIC; SPACE GROUP: PCAB (61); 8 G FORMULA WT/UNIT CELL X-RAY CRYSTALLOGRAPHIC DATA: AO= 5.456 + OR - 0.002; BO= 9.182 + OR - 0.005; CO= 5.143 + OR - 0.003;When substantially pure, a massive single crystal (boule) of rutile has properties of precious gem with a very light straw color and with reflectance, refraction and brilliance measuring greater than those of a diamond. ... high opacity and tinting values are claimed for rutile-like pigments.;Titania is ... large ... crystals (translucent water-white or with yellowish cast) these crystals have refractive index ... higher than diamonds ... but lack hardness of diamonds.;Possesses perhaps the greatest hiding power of all inorg white pigments;Brown tetragonal crystals; MP: 1560 deg C; density: 3.9 g/cu cm /Titanium(IV)oxide (Anatase)/;White, orthorhombic crystals; density: 4.17 g/cu cm /Titanium(IV)oxide (Brookite)/;White, tetrahedral crystals; MP: 1843 deg C; BBP: approximately 3000 deg C; density: 4.17 g/cu cm. Insoluble in water, dilute acid; soluble in concentrated acid /Titanium(IV)oxide (Rutile)/;
Refractive Index
n20/D 1.520
Semiconductor Properties
<100>
Topological Polar Surface Area
34.1A^2
Vapor Pressure
0 mm Hg at 68 ° F Essentially (NTP, 1992);0 mmHg (approx);0 mmHg (approx);
