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titanium dioxide — news, coverage & facts — IJR

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titanium dioxide

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titanium dioxide

chemical compound

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Also known as rutile, titanium oxide, titanium peroxide

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No public IJR answers mention titanium dioxide yet. As people ask about it and share their answers, they'll appear here.

Facts from Wikidata (CC0).

Overview

Titanium dioxide, also known as titanium(IV) oxide or titania, is the inorganic compound derived from titanium with the chemical formula TiO2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. It is a white solid that is insoluble in water, although mineral forms can appear black. As a pigment, it has a wide range of applications, including paint, sunscreen, and food coloring. When used as a food coloring, it has E number E171. World production in 2014 exceeded 9 million tonnes. It has been estimated that titanium dioxide is used in two-thirds of all pigments, and pigments based on the oxide have been valued at a price of $13.2 billion.

From Wikipedia (CC BY-SA 4.0).

Notable quotes

“Titanium dioxide was first produced commercially in 1923, primarily for pigment production. Relatively small quantities are used for non-pigmentary purposes.”
— Summary of Data Reported, p. 272.
“Exposure levels [to titanium dioxide]... are assumed to be low... with the possible exception of workers who handle large quanities... No significant exposure... is thought to occur during the use of products in which titanium dioxide is bound to other materials, such as paints.”
— Summary of Data Reported, p. 272.
“In two studies of rats that inhaled titanium dioxide, one observed an excess incidence of lung tumours... No increases were observed among mice and hamsters exposed intratracheally. Other studies that used different routes of administration did not observe excesses in tumour incidence.”
— Evaluation and Rationale, p. 275.
“TiO 2 powders have begun to appear in many applications, mainly due to their ability to confer whiteness and opacity on... products, such as paints, papers and cosmetics.”
— Introduction, p. 227.
“Numerous technological improvements, based on nano-sized TiO 2 ... enable its use for antifogging and self-cleaning coatings on glass, for building facades, in confectionary, in the plastics industry... [etc.]”
— Introduction, pp. 227-228.
“The conventional method to evaluate the activity of photoactive fabrics is discoloration of spots under radiation. Organic dyes... coffee... wine... juice... make-up, and sweat... were used... Complete discoloration of spots can be achieved on the surface of photoactive fabrics after long-term irradiation.”
— Introduction

Quotes via Wikiquote (CC BY-SA), each with its original source.