Abstract
S-Methylmethionine sulfonium chloride precipitates quantitatively as direineckate from 0.1N HCl solution, in the presence of large excess of reinecke salt. This property was used for its determination. A sample solution was mixed with an excess amount of reinecke salt solution, and HCl was added so as to make finally a 0.1N. The mixture was allowed to stand, agitating frequently and protecting from light, in ice cold water for one hour, and filtered. The excess reinecke salt remained in the filtrate was determined colorimetrically.
