696 
EESEAECHES OF DE. HOFIVIAXN' AXD M. CAHOUES 
luble in alcohol and ether, but rather soluble in water. From the boiling solution it is 
deposited in magnificent octahedra. 
0'5095 grm. of the platinum-salt gave 0-700 grm. of chloride of silver and 1616 grm. 
of platinum. 
The formula 0,0 H ,4 PCI, PtCl 2 = (Me 3 E)CL PtClg 
requires the following numbers : — 
Theory. 
Experiment. 
I 
equiv. 
of Trimethylethylphosphonium 
105-0 
33-86 
3 
equivs, 
, of Chlorine 
106-5 
34-33 
33-95 
I 
equiv. 
of Platinum 
98-7 
31-81 
31-72 
I 
equiv. 
of Platinum-salt 
310-2 
100-00 
Iodide of TrimethylamyJphosphonium. 
The ethereal solution of the constituents slowly deposits this compound. It is ex- 
tremely soluble in water, and hence, if the ethereal solution of the iodide of ethyl con- 
tain the most minute trace of water, the salt separates in the form of a sp-up. which 
only gradually solidifies. It crystallizes in needles, although with difficulty, from abso- 
lute alcohol. Its composition is 
C46H2„PI = Me3Ayl PI. 
0-5495 grm. of the substance gave 0-4700 grm. of iodide of silver. 
Theory. Experiment. 
A . ^ 
I equiv. of Trimethylamylphosphonium 147 53-65 
I equiv. of Iodine 127 46-35 46-22 
I equiv. of the Iodide 274 100-00 
Chloride of Triynethylarnylphosjyhonium and Bichloride of Platinum. 
The oxide' liberated from the iodide by means of oxide of silver, furnishes, with 
hydrochloric acid and bichloride of platinum, a very soluble platinum-salt, which cry 
stallizes from boiling water in splendid needles, aggregated in spherules. 
I. 0-8275 grm. of this platinum-salt gave 1-009 grm. of chloride of silver and 
0-231 grm. of platinum. 
II. 0-2455 grm. gave 0-3010 grm. of chloride of silver. 
These numbers lead to the formula 
Cie H 20 PCI, PtCl 2 =(Me 3 Ayl) PCI, PtCL, 
as is seen by the following comparison : — 
Theory. Experiment. 
I. II. 
1 equiv. of Trimethylamylphosphonium 
147-0 
41-74 
3 equivs. of Chlorine 
106-5 
30-24 
30-16 
0 A . 0 0 
oU DO 
1 equiv. of Platinum 
98-7 
28-02 
27-91 
1 equiv. of the Platinum-salt .... 
352-2 
100-00 
