Difference between revisions of "Rosaniline"

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== Description ==
 
== Description ==
  
Colorless needles and plates that forma a red solution. Rosaniline is formed from one molecule of [[aniline|aniline]] and two of [[toluidine|toluidine]]. All varieties of magenta dyes are salts this tripheylmethane compound. Chlorination of rosaniline produces [[magenta|magenta]] (rosaniline chloride). Currently, rosaniline is used as a [[fungicide|fungicide]], fabric [[dye|dye]], and [[ink|ink]] colorant. It is also a [[fluorochrome|fluorochrome]]. It has a mean excitation wavelength of 570 nm (green) and a mean emission wavelength of 625 nm (Wolbers et al. 1990).
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Colorless needles and plates that forma a red solution. Rosaniline is formed from one molecule of [[aniline|aniline]] and two of toluidine. All varieties of magenta dyes are salts this tripheylmethane compound. Chlorination of rosaniline produces [[magenta|magenta]] (rosaniline chloride). Currently, rosaniline is used as a [[fungicide|fungicide]], fabric [[dye|dye]], and [[ink|ink]] colorant. It is also a [[fluorochrome|fluorochrome]]. It has a mean excitation wavelength of 570 nm (green) and a mean emission wavelength of 625 nm (Wolbers et al. 1990).
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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[[[SliderGallery rightalign|rosaniline.jpg~Chemical structure]]]
 
[[[SliderGallery rightalign|rosaniline.jpg~Chemical structure]]]
  
== Other Properties ==
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== Physical and Chemical Properties ==
  
 
Soluble in acids, hot ethanol and aniline. Slightly soluble in boiling water. Insoluble in ether and benzene.
 
Soluble in acids, hot ethanol and aniline. Slightly soluble in boiling water. Insoluble in ether and benzene.
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|-
 
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! scope="row"| Melting Point
 
! scope="row"| Melting Point
| 205
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| 205 C
 
|-
 
|-
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
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|}
 
|}
  
== Hazards and Safety ==
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== Risks ==
  
Potential carcinogen.  Contact causes irritation.   
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* Potential carcinogen.   
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* Contact causes irritation.   
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* Fisher Scientific: [https://fscimage.fishersci.com/msds/86807.htm MSDS]
  
Fisher Scientific: [https://fscimage.fishersci.com/msds/86807.htm MSDS]
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== Resources and Citations ==
 
 
== Additional Information ==
 
 
 
R. Wolbers, N. Sterman, C. Stavroudis, "Notes for Workshop on New Methods in the Cleaning of Paintings", Getty Conservation Institute, Los Angeles, 1990.
 
 
 
== Sources Checked for Data in Record ==
 
  
 
* 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

Latest revision as of 15:29, 27 June 2022

Description

Colorless needles and plates that forma a red solution. Rosaniline is formed from one molecule of Aniline and two of toluidine. All varieties of magenta dyes are salts this tripheylmethane compound. Chlorination of rosaniline produces Magenta (rosaniline chloride). Currently, rosaniline is used as a Fungicide, fabric Dye, and Ink colorant. It is also a Fluorochrome. It has a mean excitation wavelength of 570 nm (green) and a mean emission wavelength of 625 nm (Wolbers et al. 1990).

Synonyms and Related Terms

roseaniline (sp); pararosaniline; rosaniline hydrochloride (magenta); CI 42500

Chemical structure

Rosaniline.jpg


Physical and Chemical Properties

Soluble in acids, hot ethanol and aniline. Slightly soluble in boiling water. Insoluble in ether and benzene.

Composition C20H19N3
CAS 25620-78-4
Melting Point 205 C
Molecular Weight mol. wt. = 305.38

Risks

  • Potential carcinogen.
  • Contact causes irritation.
  • Fisher Scientific: MSDS

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Notes for Workshop on New Methods in the Cleaning of Paintings, J.Paul Getty Trust, Los Angeles, 1990
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983
  • F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876
  • Aldrich Chemical Catalog

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