Difference between revisions of "Rosaniline"

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

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

@@ Line 22: / Line 22: @@
 |-
 ! scope="row"| Melting Point
-| 205
+| 205 C
 |-
 ! scope="row"| Molecular Weight
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 == Risks ==
-Potential carcinogen.  Contact causes irritation.
+* Potential carcinogen.
+* Contact causes irritation.
-Fisher Scientific: [https://fscimage.fishersci.com/msds/86807.htm MSDS]
+* Fisher Scientific: [https://fscimage.fishersci.com/msds/86807.htm MSDS]
 == Resources and Citations ==