426 
DE. A. W. TTOEAfAXX OX THE PHOSPHOErS-BASES. 
Several times recrystallized from alcohol and dried over sulphuric acid, the new body 
has furnished the following results on analysis : — 
I. 0-3610 grm. of the disulphide-of-carbon-compound gave 0-5750 grm. of carbonic 
acid and 0-2490 grm. of water. 
II. 0-3595 grm. of a new preparation gave 0-5790 grm. of carbonic acid and 0-2481 
grm. of water. 
III. 0-4180 grm. of a third preparation gave 0-6680 grm. of carbonic acid and 0-3027 
grm. of water. 
IV. 0-3505 grm. of substance, heated with a mixture of carbonate and chlorate of 
potassium, gave 0-8355 grm. of sulphate of barium. 
These numbers lead to the formula 
C;H,5PS, = (C,H,),P+CS,. 
Theory. Experiment. 
I. 
II. 
III. 
IV. 
C; 
84 
43-30 
43-43 
43-92 
43-58 
Hi5 
15 
7-73 
7-66 
7-67 
8-04 
P 
31 
15-98 
s, 
64 
32-99 
^ O . “ O 
194 
• 100-00 
The red crystals are not the only product of the action of disulphide of cai-hoii on 
triethylphosphine. A second beautifully crystallized compound is deposited after some 
time from the mother-liquor. This substance, probably a secondary product of the action 
of the air, is formed in extremely minute quantity ; its nature is not yet established. 
The compound of triethylphosphine with disulphide of carbon is insoluble in water, 
sparingly soluble in ether, moderately soluble in disulphide of carbon, and somewhat 
more soluble in alcohol, especially when heated. The solution has no action on vegetable 
colours. From the boiling alcoholic solution, it separates on cooling in red needles, 
somewhat resembling the crystals of chromic acid, which ai-e formed by the action of 
strong sulphuric acid in a solution of chromate of potassium. The ethereal solution, 
left to evaporate in an open cylinder, deposits finely developed, deep-red crystals of 
considerable size. Quintino Sella has examined these crystals with the following 
results. 
“ System monoclinic : — 
100, 101z=:29° 41i'; 010, 111 = 74° 4'; 1 01, 001 = 27° 71'. 
Forms observed: — 
10 0, 010, 001, 110, 101 (Fig. 15). 
Combinations obser^•ed : — 
10 0, 11 0, 001, TOl (Fig. 16). 
10 0 , 11 0 , 00 1 , To 1 , 010 (Fig. 17). 
