naphthol
American Heritage Dictionary:
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naph·thol
(năf'thôl', -thōl', -thŏl', năp'-) 
also naph·tol (-tôl, -tōl, -tŏl)
n.
An organic compound, C10H7OH, occurring in two isomeric forms, alpha-naphthol and beta-naphthol.
also naph·tol (-tôl, -tōl, -tŏl)n.
An organic compound, C10H7OH, occurring in two isomeric forms, alpha-naphthol and beta-naphthol.
[NAPHTH(ALENE) + -OL2.]
naphthol (năf'thôl), C10H7OH, either of two crystalline monohydric alcohols. The naphthols are position isomers, differing in the location of the hydroxyl group, -OH, on the carbon skeleton of naphthalene; α-naphthol is 1-hydroxynaphthalene and β-naphthol is 2-hydroxynaphthalene: The naphthols have a number of similar properties. They melt at 95°C and 122°C and boil at 279°C and 285°C, respectively; both are soluble in alcohol and ether and slightly soluble in hot water. One way in which they differ is the form of their crystals-α-naphthol crystallizes in prisms and β-naphthol in plates. The naphthols are prepared by reacting naphthalene with sulfuric acid and hydrolyzing the resultant sulfate ester by heating it with sodium hydroxide solution. Both naphthols exhibit antiseptic properties. They are used in the synthesis of certain azo dyes and antioxidants for rubbers. Naphthol solutions are used in chemical analysis to detect the ferric ion; dissolved ferric ion turns an α-naphthol solution violet and turns a β-naphthol solution green.
Saunders Veterinary Dictionary:
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naphthol
A phenol occurring in coal tar: α-naphthol (1-hydroxynaphthalene) or β-naphthol (2-hydroxynaphthalene). It has antiseptic properties and is used in compound form as a skin antiseptic.
Wikipedia on Answers.com:
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Naphthol
Naphthol may refer to:
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Translations:
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Naphthol
Français (French)
n. - naphtol
Deutsch (German)
n. - (chem.) Naphthol
Ελληνική (Greek)
n. - (χημ.) ναφθόλη
Português (Portuguese)
n. - naftol (m) (Quím.)
中文（简体）(Chinese (Simplified))
奈酚
中文（繁體）(Chinese (Traditional))
n. - 奈酚
한국어 (Korean)
n. - 나프톨(방부제,염료의 원료)
العربيه (Arabic)
(الاسم) النفثول
עברית (Hebrew)
n. - נפתול (חומר המשמש לצביעה ולחיטוי)
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Copyrights:
American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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Columbia Encyclopedia
The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2012, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/.
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Saunders Veterinary Dictionary
Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.
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Wikipedia on Answers.com
This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Naphthol.
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