IOWA ACADEMY OF SCIENCES. 
97 
For the analyses and for dilution, known quantities of the 
solution were obtained by weighing, since the high viscosity of 
solutions of lithium chloride in amyl alcohol, stand in the way 
of accurate measurement by volume. 
Determination of CL I. 1.1563 grams of sol. taken. Required 
17.66 c.c. Ag NO 3 sol. (of which 1 c.c. = 3.532 Mg Cl) = .0747 
gram Li Cl; . •. 1 gram sol. contains .0646 gram Li CL II. 
1.5110 grams of sol. taken. Required 23.00 Cl; AgNOg sol. 
= .0973 grams Li Cl; . *. 1 gram sol. contains .0644 gram Li Cl. 
Determination of Li. For the purpose of this determination 
the lithium chloride was converted into sulphate after evapora- 
tion of the alcohol, every precaution against mechanical loss 
by spirting being observed. III. Taken 3.3586 grams solu- 
tion: obtained .2813 grams., Lq SO^=.2177 grams Li Cl. .’.I 
gram sol. contains .0648 gram Li Cl. IV. Taken 5.5111 gram 
sol., obtained .4618 gram Lq SO^==.3574 grams Li Cl. 1 
gram sol. contains .0649 gram Li Cl. V. Taken 5.0798 gram 
sol., obtained .4261 gram Lq SO^=.3298 gram Li CL .'.1 gram 
of the sol. contains .0649 gram Li CL 
The mean of the five determinations gives .0647 grams as 
the amount of lithium chloride contained in each gram of the 
solution and the close agreement of the results as calculated 
from the chlorine with those as calculated from the lithium is 
satisfactory evidence of the absence of foreign substances and 
of lithium oxide. Another nearly saturated solution made and 
analyzed in the same way was found to contain .06681 grams 
Li Cl per gram. According to Gooch (Fres. Zeit. 26, 356) 1 c. c. 
of a cold saturated solution of lithium chloride in amyl alcohol 
contains .066 grams of the salt. 
The first solution mentioned above is of concentration 
and from it was made the solution by diluting 65.5023 grams 
with amyl alcohol to 100 c. c. The higher dilutions were pre- 
pared from the ™ by mixing, in a stoppered tube made for the 
purpose, having one graduation mark at 50 c. c. , and another 
at 100 c. c. The and solutions only were independently 
made from the stronger solution mentioned above. All solu- 
tions were carefully guarded from moisture and several of those 
first examined were again tested at the close of the whole series 
of measurements and found not to have appreciably altered in 
conductivity. 
