. Chemistry: general, medical, and pharmaceutical, including the chemistry of the U. S. Pharmacopia. A manual on the general principles of the science, and their applications in medicine and pharmacy. Urates. a, of Sodium; )- Calcium Oxalate. b, of Magnesium. 8 , * K Calcium Carbonate. Hippuric Acid. acid that the salt is deposited. It consists of minute spherules,varying in size, the smaller ones often in process of dumb-bell form thus produced is easily distinguished from simi-lar groups of uric acid or calcium oxalate by showing a black crossin each spherule when viewed by p
. Chemistry: general, medical, and pharmaceutical, including the chemistry of the U. S. Pharmacopia. A manual on the general principles of the science, and their applications in medicine and pharmacy. Urates. a, of Sodium; )- Calcium Oxalate. b, of Magnesium. 8 , * K Calcium Carbonate. Hippuric Acid. acid that the salt is deposited. It consists of minute spherules,varying in size, the smaller ones often in process of dumb-bell form thus produced is easily distinguished from simi-lar groups of uric acid or calcium oxalate by showing a black crossin each spherule when viewed by polarized light. Acetic acid dis-solves calcium carbonate, liberating carbonic acid gas, with visibleeffervescence (under the microscope) if the slide has been previouslywarmed and a group of crystals be attacked. Hippuric Acid.—The pointed rhombic prisms and acicular crys-tals are characteristic and easily recognized. The broader crystalsmay possibly be mistaken for triple phosphate, and the narrowerfor certain forms of uric acid; but insolubility in acetic acid dis-tinguishes them from the former, and solubility in alcohol from thelatter. These tests may be applied while the deposit is unde
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