ACID AND THE PRODUCTS OF ITS DISTILLATION. 51 
or 2°1645 er. of the silver salt gave 0°619 gr. silver, that is to 
say, 28°62 per cent., or 30°73 per cent. oxide of silver. The atom 
of the anhydrous stearic acid weighs therefore 6543. 
Further, when burnt with oxide of copper :— 
I. 0°288 gr. of the stearate of silver yielded 0°5715 gr. carbonic 
acid, and 0°2335 gr. water. 
II. 0°2985 gr. of this salt yielded 0°595 gr. carbonic acid, and 
0°2425 gr. water. 
III. 0°371 gr. of the same compound gave 0°7385 gr. carbonic 
acid, and 0°3035 gr. of the substance gave 0°2455 water; or in 
100 parts, 
Te Il. Ill. 
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Taydropenos 205 © D0 2. 9°03) 3. 899 
baerremias 1 PES 6S36 0d LenS Bor co) Ste 
Orxideof silver. :. (30°73): .  . 830°7973 «ss 80°73 
The theoretical composition of the stearate of silver, therefore, 
as deduced from the above, is 
68 equiv. Carbon . . 5197°6 . . 55°15 per cent. 
66... Hydrogen . 8236 . . 84 ene 
en Oxyoen. "S000... oS eee 
2 .. Oxide of silver 2903'2 . . 30°80 ous 
Stearate of silver 9424°4 100°00 
The anhydrous acid is therefore composed of 
68 equiv. Carbon . . 519776 . . 79°70 per cent. 
66... Hydrogen . 823° . . 12°63 
Wt, Aaayoen . 4 DOOD: 28 P67 eee 
6521°2 100°00 
The hydrate of this acid, in which two equivalents of water 
replace the two equivalents of metallic oxide, consists therefore of 
68 equiv. Carbon . . 51976 . . 77°04 per cent. 
Sea... Hydrogen . 8486 . . 12°58 eee 
Seate |) Oxygen: 5) ).00 F000) .. s  10°38 ike 
6746°2 100°00 
numbers which coincide perfectly with those experimentally de- 
termined. 
Nothing surprised me more than the incompatibility of the 
EZ 
