zinc oxide

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zinc oxide

zinc oxide chemical compound, ZnO, that is nearly insoluble in water but soluble in acids or alkalies. It occurs as white hexagonal crystals or a white powder commonly known as zinc white. Zinc white is used as a pigment in paints; less opaque than lithopone, it remains white when exposed to hydrogen sulfide or ultraviolet light. It is also used as a filler for rubber goods and in coatings for paper. Chinese white is a special grade of zinc white used in artists' pigments. Because it absorbs ultraviolet light, zinc oxide can be used in ointments, creams, and lotions to protect against sunburn. Crystalline zinc oxide exhibits the piezoelectric effect, is luminescent, and is light sensitive. Zinc oxide occurs in nature as the mineral zincite. Zinc peroxide, ZnO ₂ · 1/2 H ₂ O, is a white to yellow powder used in antiseptic ointments.

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"zinc oxide." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 15 Nov. 2009 <http://www.encyclopedia.com>.

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zinc oxide

A Dictionary of Nursing | 2008 | Â© A Dictionary of Nursing 2008, originally published by Oxford University Press 2008. (Hide copyright information) Copyright

zinc oxide n. a mild astringent used in various skin conditions, usually mixed with other substances. It is applied as a cream, ointment, dusting powder, or as a paste, often in the form of an impregnated bandage.

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zinc oxide

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

zinc ox·ide • n. an insoluble white solid, ZnO, used as a pigment and in medicinal ointments.

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Free newspaper and magazine articles

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	A randomized clinical trial on the treatment of oral herpes with topical zinc oxide/glycine.(Abstract) Magazine article from: Alternative Medicine Review; 8/1/2001

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