Due to differences in users’ monitors, the colors presented are an approximation of the true color.
BR1-Rhodamine 6G
PR48:1-Permanent Red
BR1-Rhodamine 6G
organic, fluorone dye
C28H31N2O3Cl
Rhodamine 6G is a staining reddish-yellow pigment that has fluorescent properties. It is extremely soluble in both water and alcohol. Fluorescent molecules absorb light at one wavelength and emit light at a longer wavelength.
Rhodamine 6G, like all fluorescent dyes, is not considered permanent, however it is reported to have high stability for a fluorone dye.
Rhodamine 6G is toxic, however it can be biologically inactive and hence non-toxic in a lake pigment form.
Rhodamine dyes are often used for microscopy in the biological sciences. Rhodamine 6G is often used as a laser dye.
PR48:1-Permanent Red
organic, monoazo
beta-oxynaphthoic acid lake, barium salt
Permanent Red is a common name used for the barium salt of beta-oxynaphthoic acid (BONA) lake pigment PR:48. It is more yellow than other shades of PR:48. BONA pigment lakes have high tinting strength.
Beta-oxynaphthoic acid (BONA) lake pigments are more lightfast than their beta-naphthol counterparts. Although their lightfastness makes them the pigment of choice in many applications, they may shift slightly in color or lose intensity under some conditions. Pigment PR48:1 has poor resistance to soap, alkali, and acid, and it is less lightfast than other BONA lake salts. It loses lightfastness when it is used in combination with titanium dioxide.
Permanent Red is a lake pigment of beta-oxynaphtholic acid, a dye that resembles the common beta-Naphthol pigments. Beta-oxynaphthoic acid may have been synthesized as early as 1887. Commerical use of BONA lake pigments began in the 20th century. Permanent Red is used in industrial paints and plastics.
UPC Code: 8803332580415