108 il.fr . Faraday on two new Compounds [Aug. 



under atmospheric pressure. When condensed again from 

 these rapid sublimations, it concretes in the upper part of the 

 tube or vessel containing it, in so transparent and colourless a 

 state, that it is difficult, except from its high refractive power, 

 to perceive where it is lodged. As the crust it forms becomes 

 thicker, it splits, and cracks like sublimed camphor ; and in a 

 few minutes after it is cold, is white, and nearly opaque. If the 

 heat be raised still higher, as when the substance is passed 

 through a red hot tube, it is decomposed, chlorine is evolved, 

 and another chloride of carbon, which condenses into a fluid, is 

 obtained. This shall be described presently. 



It is not readily combustible ; when held in the flame of a 

 spirit lamp, it, burns with a red flame, emitting much smoke and 

 acid fumes ; but when removed from the lamp, combustion 

 ceases. In the combustion that does take place in the lamp, 

 the hydrogen of the alcohol, by combining with the chlorine of 

 the compound, performs the most important part ; nevertheless, 

 when the substance is heated red in an atmosphere of pure 

 oxygen, it sometimes burns with a brilliant light. 



It is not soluble in water at common temperatures ; or only in 

 very small quantity. When a drop or two of the alcoholic solu- 

 tion is poured into a large quantity of water, it renders it turbid 

 from the deposition of the substance. It does not appear 

 that hot water dissolves more of it than cold water. 



It dissolves in alcohol with facility, and in much greater quan- 

 tity with heat than without. A saturated hot solution crystal- 

 lizes as it cools, and the cold solution also gives crystals by 

 spontaneous evaporation. When poured into water, the chloride 

 is precipitated, and falls to the bottom in flakes. If burnt, the 

 flame of the alcohol is brightened by the presence of the sub- 

 stance, and fumes of muriatic acid are liberated. Solution of 

 nitrate of silver does not produce any turbidness in it, unless it 

 be in such quantity that the water throws down the substance ; 

 but no chloride of silver is formed. 



It is much more soluble in ether than in alcohol, and more so 

 in hot than in cold ether. The hot solution deposits crystals as it 

 cools ; and the crystallization of a cold solution, when evaporated 

 on a glass plate, is very beautiful. This solution is not precipi- 

 tated by water, unless the ether has previously been dried, and 

 then water occasions a turbidness. Nitrate of silver does not 

 precipitate it. When burned, muriatic acid fumes are liberated, 

 hut the greater part of the chloride remains in the capsule. 



It is soluble in the volatile oils, and on evaporation is again 

 obtained in crystals. It is also readily soluble in fixed oils. 

 The solutions when heated liberate muriatic acid gas, and the 

 oil becomes of a dark colour, as if charred. 



Solutions of the acids and alkalies do not act with any energy 

 on the substance. When boiled with solutions of pure potash 

 and soda, it rises and condenses in the upper part of the vessel ; 



