€. E. Linebarger — Viscosity of Mixtures of Liquids. 337 







Table YII. 







Viscosity of Mixtures of Benzene (a. 



/) and Chloroform (h). 











Temperature — 25°-0 







Molecular 









Percentage 



percentage 



Specific 



Calculated Observed 





composition. 



conaposition. 



gravity. 



viscosity, viscosity. 



Diff. 



CeHe CHCI3 



CeHe CBCI3 









0-000 100-000 



0-000 ICOOOO 



1-48069 



0-00540 





6-967 93033 



10-290 89-710 



1-41165 



000544 0-00546 



—000002 



23-010 '76-990 



31-411 68589 



1-27568 



0-00554 00(»557 



-0-00003 



'72-780 27-220 



80-370 19 630 



0-98485 



000582 0-00581 



+ 000001 



85-831 14-169 



90289 9-711 



0-92965 



0-00590 0-00587 



+ 0-00003 



00-000 0000 



100-000 0000 



0-87661 



0-00599 





(A.) The chloroform had been fractionated to constant boil- 

 ing point, and was finally distilled over phosphoric anhydride ; 

 its boiling point was 61°'3 (uncorr.) under a pressure of 759™"" 

 of mercury. 



Table YIII. 



Viscosity of Mixtures of Toluene (c. II.) and Acetic Ether (f II.) 



Percentage 

 composition. 



CyHs C4H6O2 



100000 

 84-292 

 54-699 

 28-745 



0-000 

 15-708 

 45-301 

 71-255 



Molecular 



percentage 



composition. 



C7H8 C4H8O2 



100-000 



84-871 



55-798 



29-665 



0-000 

 15-129 

 44202 

 70-335 



Specific 

 gravity. 



0-89156 

 0-88588 

 0-87529 

 0-86636 



Temperature —25 -0 



Calculated 

 viscosity. 



000474 

 0-00497 

 0-00517 



100-000 0-000 100-000 0-000 0-85680 



Observed 

 viscosity. 



0-00462 

 0-00466 

 000481 

 0-00509 

 0-00539 



DLff. 



+ 0-00008 

 + 0-00016 

 + 0-00008 



Table IX. 



Viscosity of Mixtures of Toluene (c. II.) and Ethyl Benzoate {i. I). 



Percentage 

 composition. 

 CvHg C90H10O2 

 0-000 100-000 



Molecular 

 percentage 

 composition. 



C713.8 CgHjoOa 



0-000 100-009 



Temperature — 25°-0 



Specific 

 gravity. 



1 -04843 



Calculated 

 viscosity. 



0-01737 



15'282 84-718 22-726 77 274 1-01458 



47-322 52-678 59-450 40-550 0*94937 01284 000939 +0-00345 



Observed 

 viscosity. Diff. 



001954 



0-01495 +0-00242 



76-170 23-830 83918 16082 089667 

 100-000 0-000 100000 0-000 0-85680 



0-00876 



0-00679 +0-00197 

 0-00539 



(i.) Ethyl benzoate was prepared by the action of hydro- 

 chloric acid on a mixture of benzoic acid and absolute alcohol. 

 It was repeatedly rectified, and the fraction boiling at 210°*3- 

 :210°*8 employed in the determinations. 



