Abstract
Aromatic nitro- and amino-compounds have been long known as the blood poison, but it was 13roved from author's experiments on the red blood cells in rabbits that there are fairly more differences among these compound. After nitrobenzene methemoglobin and Heinz's body was present, while was absent after aniline, nitrobenzene and aminophenol of the same or rather more amount. The reduction-potential of some m-nitroaniline derivatives was measured by means of polarography, where it was found that the lower the potential, the more toxic would be for the red blood cells.
