| 单词 | titanium dioxide |
| 释义 | > as lemmastitanium dioxide titanium dioxide n. a white solid which occurs naturally as the mineral rutile and is used extensively as a white pigment and as an opacifier; also called titanium( iv) oxide.Formula: TiO2. Titanium dioxide has a high brightness and high refractive index, and is used as a component of paints, varnishes, paper, plastics, and cosmetics. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > titanium > [noun] > compounds > titanium dioxide titania1870 titanium dioxide1877 1877 Jrnl. Chem. Soc. 32 688 Sulphate of titanium dioxide, TiS2O8 + 3H2O, is a yellow resinous mass. 1936 Brit. Med. Jrnl. 4 Apr. 723/1 Painting the face need no longer be attended with any danger. Titanium dioxide, for example, provides a perfect substitute for white lead. 1982 Sci. Amer. Oct. 58 (advt.) Titanium dioxide makes the plastic of your coffee cup opaque and the color of your telephone deep and bright. 2012 Kitchener-Waterloo (Ont.) (Nexis) 30 Aug. c7 Use zinc oxide or titanium dioxide sunscreen with a 30 SPF. < as lemmas |
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