ON THE PHOSPHOEUS -BASES. 
691 
salt, crystallizing in well-defined cubes, truncated by the planes of the octahedron. 
This salt, which is insoluble in alcohol and ether, may be recrystallized from boiling 
water without decomposition ; it contains 
C.^HigPCl, PtCl3=(MeE3)PCl, PtCl^. 
0-4297 grm. of the platinum-salt, fused with carbonate of sodium, gave 0-651 grm 
chloride of silver and 0-127 grm. of platinum. 
Theory. 
Experiment. 
1 equiv. of Methyltriethylphosphonium . 
133 
39-20 
3 equivs. of Chlorine ...... 
106-5 
31-49 
31-72 
1 equiv. of Platinum 
98-7 
29-31 
29-55 
1 equiv. of the Platinum-salt . . . . 
338-2 
100-00 
Iodide of Triethylamylphosphonium. 
Iodide of amyl acts but slowly on the phosphorus-base. From a mixture of the two 
substances in ether, beautiful crystals are deposited after a few days, which may be puri- 
fied by solution in alcohol and precipitation by ether ; they contain 
C,,H,ePI=(E3Ayl)P I. 
0-577 grm. of the substance gave 0-432 grm. of iodide of silver. 
Theory. Experiment. 
1 equiv. of Triethylamylphosphonium . 189 59-80 
1 equiv. of Iodine 127 40-20 40-45 
1 equiv. of the Iodide 316 100-00 
Treatment of this compound \vith oxide of silver furnishes the free oxide of triethyl- 
amylphosphonium, with all the properties characteristic of the class. The corresponding 
chloride deposits, on addition of bichloride of platinum, a beautiful platinum-salt, 
crystallizing in prisms, with flat terminal planes. It is insoluble in alcohol and ether, 
but rather soluble in water. The platinum-salt has the composition 
Q^H^gPCl, PtCl,=(E3Ayl)PCl, PtCl^. 
0-3494 grm. of the platinum-salt gave 0-3873 grm. of chloride of silver and 0-0880 grm. 
of platinum. 
Theory. 

Experiment. 
1 equiv. of Triethylamylphosphonium 
. 189 
47-94 
3 equivs. of Chlorine 
. 106-5 
27-02 
27-42 
1 equiv. of Platinum 
. 98-7 
25-04 
25-18 
1 equiv. of the Platinum-salt . . . 
. 394-2 
100-00 
4 H 2 
