Basic Violel 5BN 5BN Nigrae viridis micans pulveris homogenei vel massas. In aqua calida et frigida (solutio purpurea). Solutum in alcohole et violaceo. Occurrit acido sulphurico coacto dilute luteo, diluto, obscure viridi, laete flavo, dein in caeruleum et purpureum. N,N-dimethylaniline habetur a...
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