116 



COAL-TAR COLORS USED IN FOOD PRODUCTS. 



2. LEWIN (Lehrbuch der Toxikologie, 1897, p. 231}: In the case of one workman, in 

 contrast with others who had long been unaffected by this substance, itching, 

 burning, inflammation, and swelling of hands and feet, and formation of blisters 

 occurred. 



G. T. 428. 



Trade names. Brilliant Green; New Victoria Green; Emerald 

 Green; Malachite Green B; Ethyl Green; Fast Green J. 



Names under which it was offered on the United States market as a 

 food color in 1907. Green E; Green 087; Emerald Green Crystals. 



Scientific name. Sulphate of zinc-double-chlorid (rarely oxalate) 

 of tetraethyl-diamido-triphenyl-carbinol. 



Discovered. 1879-80. 



Shade. Yellowish green. Offered by 3 out of 12 sources. 



FAVORABLE. 



1. LEWIN (Lehrbuch der Toxikologie, 1897, p. 231} says when free from arsenic it is 



harmless. 



2. Buss lists it as nonpoisonous. 



UNFAVORABLE. 



1. CHLOPIN (pp. 171-2}'. Classifies it as "very poisonous" on his own experiments 

 (see p. 181). The experimental data are as follows: 



Experimental data by Chlopin. 



No. l. 

 [1 gram=125 mg=87.5 grains.] 



No. 2. 

 (1 gram=lll mg=78 grains.) 



