Table 437 



transmissibility of radiation by dyes 



3S5 



Percentage transmissions of aqueous solutions taken from The Physical Basis of Color-Technology, Luckiesh, J. 

 Franklin Inst. 184, 1917. 



Spectrum color 



Wave-length in /U 



Carmen ruby opt 



Amido naphthol red 



Coccinine 



Erythrosine 



Hematoxyline 



Alizarinered 



Acid rosolic (pure) 



Rapid filter red 



Aniline red fast extra A . . 



Pinatype red fast 



Eosine 



Rose bengal 



Cobalt nitrate 



Tartrazine 



Chrysoidin 



Aurantia 



Aniline yellow phosphine. 



Fluorescein 



Aniline yellow fast S 



Methyl orange indicator. . 



Uranine 



Uranine naphthaline 



Orange B naphthol 



Safranine 



Martius gelb 



Naphthol yellow 



Potassium bichromate, sat 

 Cobalt chromate 



Naphthol green 



Brilliant green 



Filter blue green 



Malachite green 



Saurgriin 



Methylengriin 



Aniline green naphthol B . 



Neptune green 



Cupric chloride 



Turnbull's blue 



Victoria blau 



Prussian blue (soluble) . . . 



Wasser blau 



Resorcine blue 



Toluidin blau 



Patent blue 



Dianil blue 



Filter blue 



Aniline blue, methyl 



Magenta 



Gentiana violet 



Rosazeine 



Iodine (dense) 



Rhodamine B 



Acid violet 



Cyonine in alcohol 



Xylene red 



Methyl violet B 



For the infra-red transmission (to 12//) and reflection powers of a number of aniline dyes, see Johnson and Spence, 

 Phys. Rev. 5, p. 349, 1915. 



Scientific Paper 440 of the Bureau of Standards, 1922, gives spectrum transmission curves (0.24 tn 1.36 11) for the 

 following dyes. Napthol Yellow S, Orange I, Amaranth, Erythrosine, Indigo Disulpho Acid, Ponceau 3R, and Light 

 Green S F Yellowish. 



Smithsonian Tables. 



