Magdala red

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Description

Fluorochrome

Other 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

Additional Information

R. Wolbers, N. Sterman and C. Stavroudis, "Notes for Workshop on New Methods in the Cleaning of Paintings", 1990, GCI, Los Angeles.

Sources Checked for Data in Record

  • 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.

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