134 



Journal of the Asiatic Society of Bengal. [February, 1907.] 



Erlenmeyer flask, and mercurotis iodide was sublimed off in an 

 atmospliere of carbon dioxide by partially immersing the flask in 

 a glycerin batli. In this way beautiful, yellow crystals of raercu- 

 reus ioide were obtained. Any accompanying mercuric iodide was 

 removed by alcohol in which it is soluble. 



Analysis: 0*112g. of the substance gave 0'0789g, of Agl by 

 Carius' method, whence the percentage of iodine is 38"1, that 

 required by theory for mercurous iodide being 38'8. 



The present investigation confirms the observation of Yvon, 

 Stroman and Rg^y that pure mercurous iodide is bright yellow^ 

 while the so-called green variety of mercurous iodide is evidently 

 a mixture. 



