OF ARTS AND SCIENCES. 335 



I. 0.2146 grm. substance gave 0.4170 grm. CO^, and 0.0791 grm. 



H,0. 

 II. 0.1797 grm. substance gave 0.1142 grm. AgCl. 



III. 0.18G5 grm. substance gave 0.1186 grm. AgCl. 



IV. 1.0389 grm. substance gave 60.6 cc. moist nitrogen at 23° and 



under a pressure of 746 mm. 



Found. 

 II. III. IV. 



15.71 15.72 



... ... 6.60 



The air-dried acid apparently contains one molecule of water of 

 crystallization, which it loses readily over sulphuric acid, or when 

 heated to 100°. With the loss of water the pale yellow or almost 

 colorless needles become brilliant yellow. 



I. 0.7579 grm. of air-dried acid lost, at 100*^, 0.0597 grm. H.,0. 

 II. 0.9022 grm. of air-dried acid lost, at 100°, 0.0702 grm. Up. 

 III. 0.5646 grm. of air-dried acid lost over H.^SO^ 0.0460 grm. Kfi. 



Anilmucoxychloric acid is sparingly soluble in cold water, more 

 readily in hot, and appears to suffer slow decomposition when its 

 aqueous solution is boiled. It dissolves readily in alcohol or ether, 

 sparingly in cold benzol or chloroform, more freely on heating. In 

 ligroin or carbonic disulphide it is nearly insoluble. From chloroform 

 it crystallizes in small compact oblique prisms, which melt with 

 decomposition at 145-147°. The acid dissolves readily in solutions 

 of the alkaline carbonates, and is reprecipitated unchanged by the addi- 

 tion of acids. In heating with acids or alkalies aniline is formed. 

 An aqueous solution of the free acids gives deep yellow precipitates 

 with salts of most of the heavy metals. With ferric chloride it gives 

 a deep brown precipitate. It forms by preference monobasic salts, but 

 we have prepared also dibasic salts. 



Baric Anilmucoxychlorate, Ba(CjoFLClNO,,)2 i H^O. — If baric car- 

 bonate is added to anilmucoxychloric acid suspended in cold water, 

 carbonic dioxide is disengaged, and a barium salt readily soluble in 

 water is formed. If the concentrated filtered solution is then heated 

 nearly to boiling, it soon deposits abundant bright yellow clustered 



