Dr. Debiis on the Action of Nitric Acid on Glycerine. 201 



with all its properties, can be obtained again. The solution of 

 glyeerate of lime docs not change the colour of litmus or tur- 

 meric paper, and yields no precipitates with the nitrates of silver 

 and lead, and the chlorides of copper and iron. Boiled with 

 nitrate of silver, a black precipitate is produced, and the addi- 

 tion of a little ammonia causes the sides of the vessel to become 

 covered with a bright coating of silver. 



Glyeerate of lime, when heated on a piece of platinum foil, 

 increases much in volume, like glycolate of lime, smells like 

 burning sugar, and is converted into carbonate of lime. Ex- 

 posed to a high temperature in a little retort, a yellow oil and a 

 liquid like acetone distil off, whilst a black residue remains. 



I. 0'279 grm., dried at the ordinary temperature over sul- 

 phuric acid and burnt with chromate of lead, gave 0"258 grm. 

 carbonic acid and 0*129 grm. water. 



0'225 grm. of the same substance, dissolved in water and 

 precipitated with oxalate of ammonia, gaveO"079 grm. carbonate 

 of lime. 



II. 0'337 grm. from another preparation, dried and burnt in 

 the same way as the substance under I., furnished 0"311 grm. 

 carbonic acid and 0'154 grm. water. 



0'348 grm. gave 0'123 grm. carbonate of lime. 



A small quantity heated strougly with potassium gave a 

 residue which did not contain cyanide of potassium; another 

 specimen burnt with a mixture of hydrated lime and oxide of 

 potassium did not evolve ammonia. 



According to these experiments, glyeerate of lime contains 

 no nitrogen. 



The above compound loses at 135° one atom of water. 1-204 



grm. dried over sulphuric acid, lost at 135° C. 0-146 grm. water. 



0-470 grui. from another preparation lost at 135° C. 0-058 



