134 



COAL-TAR COLORS USED TN FOOD PRODUCTS. 



UNFAVORABLE. 



1. CHLOPIN(P. 190 ) reports Fuchsia containing Phosphin as suspicious. 



2. On his own experiments says this color "does not belong to the poisonous colors, 



but is not wholly harmless. ' ' The experimental data are as follows: 



Experimental data by Chlopin. 

 [1 gram=147 mg=103 grains.] 



3. (p. 178): See experimental data on G. T. 448, which also applies to this color. 



4. FRAENKEL (p. 578): Where its physiological action is compared with quinin its 



action on protozoa is far greater. "The Phosphins are locally strong irritants, 

 and producers of inflammation of medium poisonous nature so that humane 

 can very well bear 400 milligrams, or 6.17 grains. 



5. LEWIN (Lehrbuch der Toxikologie, 1897, p. 232): "Phosphin * * * produces 



in humans, in doses up to 1 gram, vomiting and diarrhea." 



DOUBTFUL. 



1. WINOGRADOW (Zts. Nahr. Genussm., 1903, v. 6, p. 589) says it almost completely 

 inhibits digestion. 



G. T. 563. 



Trade names. Alizarin Blue S; Anthracene Blue S; Alizarin 

 Blue ABS. 



Scientific name. Sodium bisulphite compound of dioxyanthra- 

 quinone-beta-quinolin. 



Discovered and patented. 1881. 



Shade. Blue. Not offered. 



1. Permitted by law of Austria. 



FAVORABLE. 



UNFAVORABLE. 



1 . CHLOPIN (p. 171): On authority not given reports this color as poisonous or harmful . 



2. EHRLICH (Das Sauerstojfbeduerfniss des Organismus, 1885, p. 23): "Per kilogram 



of rabbit, 12-15 cc of this solution in general produce death within the first 

 quarter of an hour; whereas 4 cc of the same did not usually produce it, and 

 7 cc represent a medium, when properly applied, fatal dose." (This solution 

 contained not to exceed 17 per cent coloring matter; each cubic centimeter 

 represents 170 milligrams per kilogram body weight, or 119 grains per 100 pounds; 

 the coloring matter was introduced subcutaneously.) 



3. Buss lists it as poisonous. 



