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Titanium dioxide (chemical formula TiO₂, molecular weight 79.87) is an inert white pigment with exceptional whiteness and hiding power. It is chemically stable and non-fluorescent, which is why it is used to raise the whiteness and brightness of so many materials. As a powder it must be handled per the SDS, with local exhaust and respiratory protection where dust is generated.
Where TiO₂ Is Used
TiO₂ is also an excellent matting agent (delusterant). Its applications span paints and coatings, catalytic coatings, plastics, paper, pharmaceuticals, sunscreen, food, commercial printing inks and textiles, among others.
Anatase vs. Rutile
By crystal form, titanium dioxide falls into rutile and anatase (a third form, brookite, is unstable and of no industrial value). Rutile has the higher refractive index and therefore the greater scattering and tinting strength per unit weight. Anatase is softer, gives a cleaner blue-toned white, disperses and filters more easily and is less abrasive to spinnerets and metering pumps — which is exactly what chemical-fibre spinning and masterbatch production need. Our HA series is anatase, the fibre-grade form.
