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Titanium dioxide vs zinc oxide

Titanium dioxide (O2Ti, CAS 13463-67-7) and zinc oxide (OZn, CAS 1314-13-2) are both listed under oxides and peroxides.

Titanium dioxide has a molar mass of 79.87 g/mol, zinc oxide 81.39 g/mol.

Measured melting points are 1,855 °C for titanium dioxide and 1,974 °C for zinc oxide.

Both carry the GHS signal word Warning.

On CompoundList, 746 suppliers list titanium dioxide and 641 suppliers list zinc oxide.

Data last updated 7 October 2026

Titanium dioxide and zinc oxide compared side by side
Titanium dioxide chemical structure, O2Ti, CAS 13463-67-7
Titanium dioxide
Zinc oxide chemical structure, OZn, CAS 1314-13-2
Zinc oxide
Identity
Name in our databaseTitanium dioxideZinc oxide
CAS number13463-67-71314-13-2
Molecular formulaO2TiOZn
Molar mass79.87 g/mol81.39 g/mol
IUPAC namedioxotitaniumzinc oxygen(2-)
EC number215-280-1215-222-5
Physical properties
AppearanceWhite, tetragonal crystalsWhite or yellowish-white powder, hexagonal crystals
Melting point1,855 °C1,974 °C
Boiling point2500 to 3000Not recorded
DensityWhite, orthorhombic crystals, density: 4.17 g/cm³ /Titanium(IV)oxide (Brookite)/5.6 g/cm³
SolubilityInsoluble in waterInsoluble in water
LogP (octanol/water)Computed from the structure-0.24-0.12
Safety (GHS)
Signal wordWarningWarning
Pictograms
GHS08: Serious health hazard
GHS09: Hazardous to the environment
Hazard statements
  • H351 Suspected of causing cancer.
  • H400 Very toxic to aquatic life.
  • H410 Very toxic to aquatic life with long lasting effects.
UN numberNot recordedUN 3077
Uses and classification
Uses and functions
  • UV filters
  • Colorants
  • Pigments
  • Food colors
  • Additive
  • Antineoplastic agent
  • Preservatives
  • UV filters
  • Skin conditioning agents
  • Colorants
  • Pigments
  • Trace minerals
CategoryInorganic chemicals › Oxides and peroxidesInorganic chemicals › Oxides and peroxides
HS code282300Titanium oxides281700Zinc oxide, zinc peroxide
Market on CompoundList
Suppliers746 suppliers641 suppliers
Supplier countries69 countries, most in United States, China, India65 countries, most in India, United States, China
Price rangeOnly prices set by suppliers who manage their own profilePrice on requestPrice on request

Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.

Titanium dioxide
Zinc oxide

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