of Anhydrous Liquefied Ammonia. 



143 



white, dissolved sparingly, and separated in needles on evaporation. 

 Chloride of silver in powder swelled considerably, but did not dissolve ; it 

 remained enlarged in bulk after evaporation of the liquid. Fused argentic 

 bromide lost its transparency, swelled and became white, dissolved 

 slightly, and crystallized on evaporation. Argentic iodide dissolved 

 rapidly and freely, and formed a dense colourless solution which mixed 

 with the excess of liquefied ammonia ; colourless crystals separated, but 

 not until nearly all the liquid had evaporated: this salt is extremely 

 soluble in the liquid. Argentic iodate showed no effect. Carbonate of 

 silver turned dark brown and swelled considerably, but did not dissolve, 

 and on evaporation of the liquid returned to its original volume and 

 colour. Argentic sulphate swelled greatly, and disintegrated to a fine 

 white powder, which returned partly to its orignal bulk after evaporation 

 of all the liquid. Phosphate of silver and argentic arseniate were nearly 

 insoluble, and suffered no chemical change. Vanadate of silver was 

 insoluble. 



Mercury was unaffected. Yellow mercuric oxide, also red-brown 

 mercuric oxide (both obtained by precipitation), did not dissolve or alter. 

 Mercurous nitrate turned black in the gas, and dissolved to some extent 

 in the liquid; the residue left after evaporation of the liquid was a 

 blackish-grey powder, apparently consisting of minute particles of metallic 

 mercury. Mercurous chloride became brown in the gas, and dissolved 

 copiously to a dense solution in the liquid ; but its solution would not mix 

 with the excess of liquefied ammonia : by evaporation of the ammonia it 

 was left in a crystalline state. Mercuric chloride dissolved freely, forming 

 a colourless dense solution, which would not mix or dissolve in the 

 slightest degree in the excess of liquid : by evaporation the excess of 

 liquid separated first, then that containing the chloride, and left the salt 

 in a crystalline state. Mercuric bromide fell to powder with apparent 

 chemical action, and dissolved to a small extent. Scarlet mercuric iodide 

 first became yellow, then dark brown, and dissolved freely : on evapora- 

 tion of the liquid, the salt separated in a crystalline state. Mercuric 

 sulphide was unaffected. Anhydrous mercuric sulphate was very little 

 affected. Hydrated mercuric sulphate swelled greatly, imparted a violet 

 colour to the liquid, and partly returned to its former bulk after 

 evaporation of the ammonia. 



Copper lost its brightness, and imparted a slightly brown colour to the 

 ammonia : when nearly all the liquid had evaporated, the residuary 

 portion was deep blue in colour. Copper filings produced no additional 

 effect. Suboxide of copper was nearly insoluble, and but little affected. 

 Protoxide of copper was also insoluble and unaffected. White anhydrous 

 cupric fluoride became deep blue in colour, but imparted scarcely any 

 colour to the liquid. Anhydrous cupric chloride became deep blue, 

 swelled greatly, did not dissolve nor impart colour to the liquid. Cuprous 

 iodide (not perfectly anhydrous) became partly green, and imparted a 



