This section is from the book "Materia Medica Pharmacy, Pharmacology And Therapeutics", by W. Hale White. Also available from Amazon: Materia Medica Pharmacy, Pharmacology And Therapeutics..
Zinci Phosphidum. Zinc Phosphide. Zn3P2=257.22. Source. - From vapor of Phosphorus in a current of dry Hydrogen over heated Zinc, after all atmospheric air is expelled.
A gritty powder of a dark-gray color, or crystalline fragments of a dark metallic lustre, and having a faint odor and taste of phosphorus.
Dose, 1/10 to 1/3 gr.; .006 to .02 gm.
 
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