Intelligence and Miscellaneous Articles. 67 



Analysis gave the following results : — 



Experiment. Calculation (C'^H^) 



Carbon 88*04 88-24 



Hydrogen 11-82 11-76 



Loss 0-14 .. 



100-0 1000 



which is the same composition as oil of turpentine and oil of lemons. 

 — An. de Ch. et de Phys., Septembre 1849. 



Olt THE DRY DISTILLATION OF CAMPHOUATE OF LIME. 



MM. Gerhardt and Lies-Bodart have found that the dry distillation 

 of the salts of lime and organic acids produces interesting results, 

 which serve as a transition between different series : with the excep- 

 tion of suberic acid, monobasic acids only have been examined in 

 this respect : the authors have made experiments with camphoric 

 acid, the characters of which as a bibasic acid are very distinct. 

 They have ascertained that camphorate of lime yields by heat an 

 essential oil, possessing the odour of oil of peppermint, and that its 

 composition is similar to that of the acetonides of the monobasic 

 acids. This oil is represented by C''H"0 = 2 volumes of vapour. 

 It is remarkable on account of the metamorphoses which it under- 

 goes by anhydrous phosphoric acid, which converts it into cumen, 

 C^H'2__2 volumes of vapour; its identity with which the authors 

 have ascertained by the easy formation and analysis of sulphocu- 

 menate of barytes. C^ H'^ BaSO^. This reaction associates the cam- 

 phoric to the cuminic, and consequently to the benzoic series. As 

 camphoric acid, though bibasic, offers no exception to the general 

 rule, it is probable that the anomaly which is presented by suberic 

 acid may be got rid of by more complete researches. — L'Institut, 

 Novembre 7, 1849. 



CYANIDE AND NITRURET OF TITANIUM. 



W. Woehler has examined the cubic crystals obtained from the 

 iron blast furnaces and hitherto supposed to be metallic titanium ; he 

 has found that they are formed of cyanide and nitruret of titanium ; 

 they contain 18 per cent, of nitrogen and 4 per cent, of carbon, their 

 formula being TiC^N + 3TiN (or TCy + 3Ti3N). 



M. Woehler also states that the titanium obtained by M. H. Rose 

 is a nitruret of titanium containing 28 per cent, of nitrogen, its for- 

 mula is Ti^ N\ 



The cubic crystals fused with hydrate of potash yield ammoniacal 

 gas ; these crystals, heated in a current of chlorine, produce a liquid 

 chloride of titanium, and a very volatile crystallized body, which is 

 a compound of cyanide and chloride of titanium ; the latter substance 

 may be obtained by exposing chloride of titanium to gaseous chloride 

 of cyanogen. By heating the cubes to redness in a current of 

 aqueous vapour the latter is decomposed, hydrogen gas is obtained, 

 as already observed by M. Regnault; but there are also produced 



F2 



