588 Intelligence and Miscellaneous Articles. 
not as a mixture of exteriors, not becoming blue with iodine and 
amidine.—L Institut, 1"* Fev. 1336. 
ARTIFICIAL CAMPHOR OR CAMPHOGENE. 
M. Opperman obtains artificial camphor by passing a current of 
dry hydrochloric acid gas into oil of turpentine. The absorption 
of the gas is very rapid, particularly if the vessel containing the 
oil of turpentine is surrounded by ice. 
Two distinct substances are formed: the one solid, the other li- 
quid. The solid substance, which is commonly called artificial 
camphor, is composed of, 
Carbone. ..4.. 0. 2c cence 70015 
Biydrogen §0,6/5. 5. ile eto". 9°717 
Chiorinewee. = 22 coe 20°272—100°004 
This substance, when purified by sublimation, crystallizes in large 
and lengthened crystals, its taste is aromatic but weak, it burns 
with a very brilliant light, and colours the flame green, is soluble 
in alcohol like common camphor; its solution does not form any 
precipitate with nitrate of silver; the alkalies, lime, &c. decompose 
it by combining with its hydrochloric acid. To obtain thebase of this 
salt the camphor was distilled with hydrate of lime: a clear and 
transparent oil was also obtained of a particular but weak odour, and 
an aromatic taste, which became solid at — 44° Fahr.: its compo- 
sition, ascertained by means of the apparatus of M. Liebig, is, 
CarGOne, : ges Geran feitats ou 0 88-48 
PA yd rope roe tas die es ahh 11-52—100: 
This substance, which had been called by M. Dumas camphogene, 
and by MM. Blanchet and Sell dadyle, is not acted upon either by 
nitric or aceticacid ; but hydrochloric acidimmediately reproduces 
artificial camphor.—L’ Institut, No. 149. 
NEW ACID OF BROMINE. 
M. Eugene Peligot is engaged in determining the action of chlo- 
rine, bromine, and iodine on salts formed by the organic acids with 
some of the metallic oxides, and has already arrived at results inter- 
esting both from their novelty and from the generalization they 
appear to present. When dry benzoate of silver is acted on by 
bromine it is decomposed, and bromine is absorbed in large quan~ 
tity. There is produced, bromine of silver, and a new acid which re- 
sembles benzoic acid in some of its physical properties, but differs ex- 
tremely in its composition. It contains, besides the elements of ben- 
zoic acid, all the oxygen of the oxide of silver and an atom of bromine. 
It may be obtained anhydrous by treating the products of the action 
by dry sulphuric ether, which dissolves the acid, and leaves the bro- 
mide of silver. 
At ordinary temperatures this acid is solid, but melts a little below 
the boiling point of water; slightly soluble in cold, but extremely so 
in boiling water, which upon cooling deposits the greater part of it : 
it burns with a flame edged with green, indicating the presence of 
bromine, which could not be recognised by a solution of nitrate of 
silyer, this not precipitating with it ; it forms crystallizable salts with 
