293 



Mr. T. E. Thorpe on the 



[Feb. 17, 



point the liquid boiled constantly. * = 135°*9, n = 19°*9, *'=24°*5. 

 Bar. 752-6 millims. Corrected boiling-point 136°*03. Corrected and 

 reduced boiling-point 136°*41. 



Its specific gravity at 0°, compared with water at 4°, was found to be 

 1*76041. According to Pierre titanium chloride boils Tat 136° under a 

 pressure of 762*3 millims., and has a specific gravity of 1*76088 at 0° 

 compared with water at 4°*. 



Observations with the dilatometer have led to the formula 



Y= 1 + 0*000 982 612* + 0*000 000 505 528 1 2 



+ 0*000 000 005 130 52 f, 



by means of which the following Table has been calculated : — 



°0. 



Volume. 



Diff. 



°C. 



Volume. 



Diff. 







100000 





90 



109627 



1180 



10 



100988 



988 



100. 



110845 



1218 



20 



101990 



1002 



110 



112103 



1258 



30 



103007 



1017 



120 



113406 



1303 



40 



104044 



1037 



130 



114756 



1350 



50 



105104 



1060 



140 



116155 



1399 



60 



106189 



1085 









70 



107302 



1113 



136*41 



1*156467 





80 



108447 



1145 







I 



The specific gravity of the liquid at 136°*41 is 1*52223, and the specific 



According to Pierre the expansion of titanium tetrachloride may be 

 represented by the formula J 



V= 1 + 0*000 942 569 004* + 0*000 001 345 791 937 ? 



+ 0*000 000 000 888 044 1\ 

 which gives results agreeing well with those afforded by my observations, 

 as the following comparison shows : — 





30° 



60° 



90° 



120° 



Pierre 



... 1*02951 



1*06159 



1*09638 



1*13402 



Thorpe . . . 



... 1*02989 



1*06169 



1*09621 



1*13414 



The specific volume of titanium chloride, calculated from Pierre's 

 results, is . ^ =125*867. 



V. Tin Tetrachloride. 



Prepared by heating pure tin in a current of dry chlorine and expelling 

 the dissolved gas by repeated distillation in a stream of dry carbon 



* Loc. cit. p. 21. 

 \ Loc, cit p. 20. 



t Ti =50-00, Pierre; Gl = 35-46, Stas. 



