Chemical Science, 489 



2B4 Solubility of Corrosive Sublimate in Ether and Alcohol by 

 Camphor. — Karls. — Camphor powerfully aids the solution of cor- 

 rosive sublimate in ether and alcohol. 



4 parts of ether without camphor dissolved 1 part of corrosive sublimate. 

 4 . . . with 4 of camphor . . 2 ,, 



• ^•' -^''^ 

 i«lno'>" /> 



■ ' '»y 



Bull. Univ. A. ix. 207. 



24. Method of preparing Ammoniuret of Silver, (fulminating Sil- 

 ver.J — Chloride of silver is to be dissolved in ammonia, and frag- 

 ments of caustic potash added : when the effervescence has ceased, 

 the black liquor obtained is to be diluted and filtered; the black 

 powder being washed and dried, detonates upon the application of 

 heat, and is fulminating silver. — Jour, de Phar,^^'^' i\ u^-.a/* 



25. Bromide of Gold. — M. Balard observed the solubility of gold 

 in bromine. According to M. Lampedius, 100 parts of the dry 

 bromide contains 50 parts of gold. This substance is of a grayish- 

 black colour 5 it dissolves readily in water, and then produces a 

 deep red liquid whidi yields crystals of hydrobromateof gold : one 

 grain of the crystals colours 5000 grains of water. — Jahrbuchder 

 C'hemie. 



26. Peculiar compound of Platina with Oxygen and Carbon. — A 

 compound, possessing the same curious properties as that dis- 

 covered by Edmund Davy, has been formed by M. Zeize in the 

 following manner : one j)art of chloride of platina, and twelve 

 parts of alcohol of s. g. 0.813, are to be put into a retort, and heated 

 slowly until the chloride becomes black, and the liquid clear and 

 colourless. The fluid being decanted, the precipitate is to be 

 washed with warm water until all acid is removed, and then care- 

 fully dried. If this substance be moderately heated, with or with- 

 out access of air, it inflames, decrepitates slightly, and yields car- 

 bonic acid, oxygen, and water, with a little acetic acid. The same 

 effects take place when its inflammation is occasioned by the pre- 

 sence of the vapour of alcohol. Ether, naphtha, or oil of turpen- 

 tine, do not produce the eflFect. — Bull. Univ. A. ix. 129. 



27. Compohitioii of Carbazotic Acid. — M. Liebeghas been led to 

 suspect his first results relative to the composition of this acid*, in 

 consequence of his discovery, that it is partly volatilized when 

 boiled, or even heated, with water. He formerly entertained a 

 suspicion that it exhibited an anomaly in the theory of definite 



* See p. 210, vol. ii, of this Journal, New Series.] 



