Über die Löslichkeitsverhältnisse von Cystin im Harn.

Abstract

The increased solubility of cystine in urine as compared with water is investigated. In a concentration of N/4, all the ordinary mineral salts of the urine increase the solubility of cystine, some of them very markedly. The greater solubility of cystine in urine can not be due exclusively to the action of the mineral salts. It is partly due to the colloids of the urine. The colloids evidently prevent the crystallization of the cystine before the true solubility equilibrium is attained. There seem to be present in the urine also dialyzable substances acting in a similar manner.