Difference between revisions of "Fuchsin"

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[[File:MFA504042 Magenta.jpg|thumb|Magenta dyed silk dress; MFA# 50.4042]]
 
== Description ==
 
== Description ==
  
A synthetic aniline dyestuff that is also called [http://cameo.mfa.org/materials/fullrecord.asp?name=magenta magenta]. Magenta was the second synthetic dye material to be produced from coal-tar derivatives. It was first noticed by Natanson in 1856. Then in 1859, Verguin patented a large scale production method for making magenta by oxidizing crude [http://cameo.mfa.org/materials/fullrecord.asp?name=aniline aniline] with [http://cameo.mfa.org/materials/fullrecord.asp?name=stannic%20chloride stannic chloride], a tanning solution. Magenta is a dark green water soluble powder that oxidizes to forms a deep red, light-sensitive dye. Fuchsin is used to color textiles and leather and to stain bacteria. Magenta was formerly used in watercolor paints but has since been replaced by colors with better lightfastness properties.
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A synthetic aniline dyestuff that is also called [[magenta]]. Magenta was the second synthetic dye material to be produced from coal-tar derivatives. It was first noticed by Natanson in 1856. Then in 1859, Verguin patented a large scale production method for making magenta by oxidizing crude aniline with [[stannic chloride]], a tanning solution. Magenta is a dark green water soluble powder that oxidizes to forms a deep red fugitive dye. It is used to color textiles and [[leather]] and to stain bacteria. Magenta was formerly used in watercolor paints but has since been replaced by colors with better lightfastness properties.
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
magenta; Basic Violet 14; CI 42510; fuchsina (Esp.); fuschine (Fr.); fucsina (Port.); p-fuchsin; basic fuchsin; rosaniline hydrochloride; rosaniline chloride
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rosaniline hydrochloride; CI Basic Red 9; CI 42510; Basic Violet 14; p-fuchsin; Solvent Red 41 (base); fuchsin; Magentarot (Deut.); magenta (Fr., Ned., Port.); fuschine (Fr.); fucsina (It.); basic fuchsin; fuchsine; azaleine (marketing name for magenta prepared by the Gerber Keller process); rosaniline chloride
  
[[[SliderGallery rightalign|fuchsin.jpg~Chemical structure]]]
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[[[SliderGallery rightalign|magenta.jpg~Chemical structure]]]
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== Risks ==
  
== Other Properties ==
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Suspected carcinogen. 
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Woodworker's Supply: [https://woodworker.com/pdf/a1930.pdf MSDS]
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== Physical and Chemical Properties ==
  
Soluble in water, acetone and ethanol.
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Soluble in water, alcohol, acetone
  
 
{| class="wikitable"
 
{| class="wikitable"
Line 29: Line 34:
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
 
| mol. wt. = 337.85
 
| mol. wt. = 337.85
|-
 
! scope="row"| Refractive Index
 
| 2.70
 
 
|}
 
|}
  
== Hazards and Safety ==
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== Resources and Citations ==
 
 
Suspected carcinogen. 
 
 
 
Mallinckrodt Baker: [http://www.jtbaker.com/msds/englishhtml/b0514.htm MSDS]
 
  
== Authority ==
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* R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966  Comment: Natanson =1856
  
* R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966  Comment: 1856
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* Reed Kay, ''The Painter's Guide To Studio Methods and Materials'', Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
  
 
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
 
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
  
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
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* Website address 1  Comment: http://www.smith.edu/hsc/silk/Papers/meredith.html (Natanson = 1856;  Verguin = 1859
 
 
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
 
 
 
* Website address 1  Comment: http://www.smith.edu/hsc/silk/Papers/meredith.html - gives both 1856 to Natanson and 1859 to Verguin
 
  
* Thomas B. Brill, ''Light Its Interaction with Art and Antiquities'', Plenum Press, New York City, 1980  Comment: 1859 by Verguin
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* Thomas B. Brill, ''Light Its Interaction with Art and Antiquities'', Plenum Press, New York City, 1980  Comment: Verguin patented process in 1859
  
* F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876  Comment: p. 364: gives 1856 to Natanson and 1859 to Verguin (with patent
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* F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876  Comment: Natanson = 1856;  Verguin = 1859
  
* A.Scharff, 'Synthetic dyestuffs for textiles and their fastness to washing', ''ICOM-CC Preprints'' Lyon, Getty Conservation Institute, Los Angeles, 1999  Comment: 1856
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* A.Scharff, 'Synthetic dyestuffs for textiles and their fastness to washing', ''ICOM-CC Preprints'' Lyon, Getty Conservation Institute, Los Angeles, 1999  Comment: discovered 1856
  
* ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980  Comment: ref. index=2.70
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* Colour Index International online at www.colour-index.org
  
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
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* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Revision as of 13:31, 30 October 2020

Magenta dyed silk dress; MFA# 50.4042

Description

A synthetic aniline dyestuff that is also called Magenta. Magenta was the second synthetic dye material to be produced from coal-tar derivatives. It was first noticed by Natanson in 1856. Then in 1859, Verguin patented a large scale production method for making magenta by oxidizing crude aniline with Stannic chloride, a tanning solution. Magenta is a dark green water soluble powder that oxidizes to forms a deep red fugitive dye. It is used to color textiles and Leather and to stain bacteria. Magenta was formerly used in watercolor paints but has since been replaced by colors with better lightfastness properties.

Synonyms and Related Terms

rosaniline hydrochloride; CI Basic Red 9; CI 42510; Basic Violet 14; p-fuchsin; Solvent Red 41 (base); fuchsin; Magentarot (Deut.); magenta (Fr., Ned., Port.); fuschine (Fr.); fucsina (It.); basic fuchsin; fuchsine; azaleine (marketing name for magenta prepared by the Gerber Keller process); rosaniline chloride

Chemical structure

Magenta.jpg

Risks

Suspected carcinogen.

Woodworker's Supply: MSDS

Physical and Chemical Properties

Soluble in water, alcohol, acetone

Composition C20H20N3Cl
CAS 632-99-5
Melting Point 250
Density 1.22
Molecular Weight mol. wt. = 337.85

Resources and Citations

  • R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966 Comment: Natanson =1856
  • Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • Thomas B. Brill, Light Its Interaction with Art and Antiquities, Plenum Press, New York City, 1980 Comment: Verguin patented process in 1859
  • F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876 Comment: Natanson = 1856; Verguin = 1859
  • A.Scharff, 'Synthetic dyestuffs for textiles and their fastness to washing', ICOM-CC Preprints Lyon, Getty Conservation Institute, Los Angeles, 1999 Comment: discovered 1856
  • Colour Index International online at www.colour-index.org

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