Red to violet colored lakes from any of several synthetic red rhodamine dyes. These fluorescent dyes are precipitated with phosphotungstic or phosphomolybdic acid. Rhodamine toners have good lightfastness. They are used in printing inks.
Sources Checked for Data in Record
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998