Difference between revisions of "Magdala red"
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== Description == | == Description == | ||
| − | + | An orange-red fluorochrome an orange-red obtained from naphthylamine. | |
| − | == | + | ==Synonyms and Related terms== |
| − | + | Phloxin B; C30H20N3+; CID 4456175 | |
| − | + | ==Risks== | |
| − | + | * NIH: [https://pubchem.ncbi.nlm.nih.gov/compound/Magdala-red Magdala Red Compound summary] | |
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| − | == | + | == Properties == |
| − | + | * Maximum absorption wavelength = 540 nm | |
| + | * Maximum emission wavelength = 570 nm | ||
| + | * The fluorescence of magdala red changes with pH. It is a non-fluorescent purple below pH=3.0 and above 4.0, it fluoresces. | ||
| + | * Refractive Index = 1.90 | ||
| + | * Molecular weight = 422.5 | ||
| − | == | + | ==Resources and Citations== |
* 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 | * 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 | ||
Latest revision as of 11:42, 16 October 2022
Description
An orange-red fluorochrome an orange-red obtained from naphthylamine.
Synonyms and Related terms
Phloxin B; C30H20N3+; CID 4456175
Risks
Properties
- Maximum absorption wavelength = 540 nm
- Maximum emission wavelength = 570 nm
- The fluorescence of magdala red changes with pH. It is a non-fluorescent purple below pH=3.0 and above 4.0, it fluoresces.
- Refractive Index = 1.90
- Molecular weight = 422.5
Resources and Citations
- 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
- CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index= 2.20; The fluorescence of magdala red changes with pH. It is a non-fluorescent purple below pH=3.0 and above 4.0, it fluoresces.