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Fat stains


, : Fat stains. Stain Technol 1(2): 79

Results to date show that certain commercial dyes are superior to specially purified sudan III (C. I. 248), of which several samples have been examined. Two commercial products have been found especially meritorious, candle scarlet (Geigy) and oil red O (National Aniline). Both have a greater depth of color than the usual sudan III, and of the two, oil red O is superior in this respect. It is understood that the technical products are composed of a mixture of isomers, whereas the purified sudan III is a single isomer.

US$29.90


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