. Eighth International congress of applied chemistry : Washington and New York, September 4 to 13, 1912 ... -- . (it <V»s- cr-~-o. xxv] Congress of Applied Chemistry 471 IN o c*ti CM* C?H3 CNS \ •7V - ^ 17 CH3 The production of Bandrowskis base, from paraphenylene- N^H+.K J^J* C^»> diamine may be attributed to an analogous reaction startingfrom quinone diimide. (Abstract) COAL-TAR COLORS AND INJURY TO HEALTH E. E. SmithNew York, N. Y. Difficulty exists in deciding the question of harmlessness ofcolors because all substances, including food, are capable ofproducing injurious effects if in
. Eighth International congress of applied chemistry : Washington and New York, September 4 to 13, 1912 ... -- . (it <V»s- cr-~-o. xxv] Congress of Applied Chemistry 471 IN o c*ti CM* C?H3 CNS \ •7V - ^ 17 CH3 The production of Bandrowskis base, from paraphenylene- N^H+.K J^J* C^»> diamine may be attributed to an analogous reaction startingfrom quinone diimide. (Abstract) COAL-TAR COLORS AND INJURY TO HEALTH E. E. SmithNew York, N. Y. Difficulty exists in deciding the question of harmlessness ofcolors because all substances, including food, are capable ofproducing injurious effects if ingested in sufficient amount; thatis, the question is a quantitative one. The injurious action mayarise because the quantity ingested exceeds the capacity ofphysiological adaptation. Hence, because a certain largequantity of color, when administered to an animal, produces aharmful effect, it may not be concluded that the color is essen-tially injurious. Such an observation establishes the quality ofaction; whether it is essentially injurious will be determined bywhether the amount in food is or is not removed by a widemargin
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Keywords: ., bookcentury1900, bookdecade19, booksubjectchemistry, bookyear1912
