22 JOURNAL OF THE 



The" ptrcenta.i^'c of water here was due to the expos- 

 ure of the precipitate in a warm room and its conse- 

 quent partial (h\vin^-. There is no evidence here nor in 

 the ])revious cases of the formation of anv definite thio- 

 sulphite and we would question its existence under 

 ordinary conditions. There is no evidence of the for- 

 mation here of an hydroxide as one of the authors 

 (juoted states. Basic salts seem to be the only products. 



Uni\-i;ksitv ok Nokth Carolina, 

 March. 1895. 



THE CHLORIDES OF ZIRCONIUM. 



BY F. P, VENABI^E. 



In a report upon the examination of the chlorides of 

 zirconium' it was stated that pure zirconium tetrachlo- 

 ride was formed by the solution of zirconium hydrox- 

 ide in hydrochloric acid and repeated crvstallization 

 from the concentrated acid. This statement was based 

 on a partial analysis by Linnemann', the result of which 

 made him call the substance the tetrachloride; and on 

 repeated partial analyses of my own, in which the zir- 

 conium present was determined by i«-nition as zirconium 

 dioxide. So firmly convinced was I of the fact that 

 this was the normal tetrachloride that I determined to 

 use it in revisino- the atomic weig'ht. Ten closely ag-ree- 

 determinations were made and they yielded as the per- 

 centa<jfe of zirconium dioxide found 52.99, or, calcula- 

 ting" with 90.62 as atomic weigdit of zirconium (Bailey) 



1. J. Am. Che 111. Soc. 18'H. 16. 460-475. 



2. Loud. Cheni. News, 52. 233-240. 



