6TH(NO2)3O. Trituration (which must be made with great care, on account of the explosive nature of the salt).
Allen quotes from Wolff and Gouzee the following constant pathogenetic effects observed in patients to whom Kali-pi. was given for intermittent fever: Jaundice, diarrhea, pain in pit of stomach, violent eructations, colic, urine clear, brownish red, not from bile pigment, but from large quantities of urate of ammonia.
Kali-pi. Is an intensely yellow salt, and yellow substances generally act powerfully on the liver, as is the case with Picric acid itself and its other salts.
Compare: Pic-ac., Fe. pi.