Difference between revisions of "Naphthol"

Latest revision as of 09:59, 19 October 2022

Description

A white crystalline powder with a faint phenolic odor. Naphthol is an aromatic compound that is primarily used as an Antioxidant in rubbers. It is stable in air but turns dark with exposure to light. Naphthol is also used as a color developer and as a stabilizer for direct dyes.

Synonyms and Related Terms

beta-naphthol; CI Developer 5; CI 37500; napthol (sp); naftol (Esp.); naphthol (Fr.); 2-naphthol; 2-hydroxynaphthalene; 2-naphthalenol; isonaphthol

Chemical structure

Risks

Combustible. Flash point = 153C (307F)
Skin irritant. Ingestion may cause vomiting, abdominal pain and convulsions.
Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in ethanol, ether, chloroform, glycerol, oils, alkaline solutions. Insoluble in water.

Composition	C10H7OH
CAS	135-19-3
Melting Point	121-123 C
Density	1.22 g/ml
Molecular Weight	mol. wt.=144.17
Boiling Point	285-286 C

Resources and Citations

Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976

Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997

The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 6471

The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', Studies in the History of Art , National Gallery of Art, Washington DC, No. 57, 1997

Website: www.china-pigment.com - density =1.28; m.p.=123-124; b.p.=295

@@ Line 1: / Line 1: @@
 == Description ==
-A white crystalline powder with a faint phenolic odor. Naphthol is an aromatic compound that is primarily used as an [http://cameo.mfa.org/materials/fullrecord.asp?name=antioxidant antioxidant] in rubbers. It is stable in air but turns dark with exposure to light. Naphthol is also used as a color developer and as a stabilizer for direct dyes.
+A white crystalline powder with a faint phenolic odor. Naphthol is an aromatic compound that is primarily used as an [[antioxidant|antioxidant]] in rubbers. It is stable in air but turns dark with exposure to light. Naphthol is also used as a color developer and as a stabilizer for direct dyes.
-See also [http://cameo.mfa.org/materials/fullrecord.asp?name=naphthol dye naphthol dye], [http://cameo.mfa.org/materials/fullrecord.asp?name=naphthol pigment naphthol pigment], and [http://cameo.mfa.org/materials/fullrecord.asp?name=beta naphthol pigment beta naphthol pigment].
+See also [[naphthol%20pigment|naphthol pigment]].
 == Synonyms and Related Terms ==
 beta-naphthol; CI Developer 5; CI 37500; napthol (sp); naftol (Esp.); naphthol (Fr.); 2-naphthol; 2-hydroxynaphthalene; 2-naphthalenol; isonaphthol
 [[[SliderGallery rightalign|naphthol.jpg~Chemical structure]]]
+== Risks ==
-== Other Properties ==
+* Combustible.  Flash point = 153C (307F)
+* Skin irritant. Ingestion may cause vomiting, abdominal pain and convulsions.
+* Fisher Scientific: [https://fscimage.fishersci.com/msds/97240.htm MSDS]
+== Physical and Chemical Properties ==
 Soluble in ethanol, ether, chloroform, glycerol, oils, alkaline solutions. Insoluble in water.
@@ Line 24: / Line 27: @@
 |-
 ! scope="row"| Melting Point
-| 121-123
+| 121-123 C
 |-
 ! scope="row"| Density
-| 1.22
+| 1.22 g/ml
 |-
 ! scope="row"| Molecular Weight
@@ Line 33: / Line 36: @@
 |-
 ! scope="row"| Boiling Point
-| 285-286
+| 285-286 C
 |}
-== Hazards and Safety ==
+== Resources and Citations ==
-Combustible.  Flash point = 153C (307F)
-Skin irritant. Ingestion may cause vomiting, abdominal pain and convulsions.
-Mallinckrodt Baker: [http://www.jtbaker.com/msds/englishhtml/b2149.htm MSDS]
-== Authority ==
-* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
+* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
 * ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
-* Random House, Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
+* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
 * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry 6471
@@ Line 56: / Line 51: @@
 * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
-* B. Berrie, S.Q. Lomax, B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', ''Studies in the History of Art'' , National Gallery of Art, Washington DC, No. 57, 1997
+* B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', ''Studies in the History of Art'' , National Gallery of Art, Washington DC, No. 57, 1997
-* Website address 1, Website address 1  Comment: www.china-pigment.com - density =1.28; m.p.=123-124; b.p.=295
+* Website: www.china-pigment.com - density =1.28; m.p.=123-124; b.p.=295
 [[Category:Materials database]]