212 AN ANALYSIS 



which dried, weighed 17.3 grains, and which, converted into 

 sulphate, gave 12.4 grains, equivalent to 9.7 of real muriate, 

 The matter not dissolved by the alcohol, being dissolved in wa- 

 ter, afforded by slow evaporation sulphate of magnesia in 

 prisms, which dried, weighed 6.3 grains. The crystallised mu- 

 riate of soda, dried at a heat of 200°, weighed 580 grains. 



The solution E deposited, on standing after twelve hours, cry- 

 stals in flat striated prisms, having every appearance of sulphate 

 of soda, and which, on more minute examination, were found 

 to be so : freed from sensible moisture, thev weighed 18 grains. 

 The liquor diluted with distilled water, was not sensibly affect- 

 ed by oxalate of ammonia ; it became slightly turbid with sub- 

 carbonate of potash, and with muriate of barytes. The alcohol 

 was drawn off by distillation ; being then submitted to evapo- 

 ration, a crust of muriate of soda formed on the surface, and 

 crystals in cubes were deposited ; additional portions of them 

 were obtained by successive evaporations, and the liquor conti- 

 nued to afford a crust of muriate of soda on its surface, while 

 hot, until it was almost entirely evaporated. A small por- 

 tion of liquor remained, which, on cooling, afforded prisma- 

 tic crystals of sulphate of magnesia, which, freed from moisture, 

 weighed 8.9 grains. The muriate of soda dried weighed 170.8 

 grains. 



The first portions of the aqueous solution F had deposited 

 crystals of sulphate of soda on cooling ; and the whole quanti- 

 ty being partially evaporated, yielded an additional portion. 

 The crystals of both, freed from adhering moisture, weighed 

 44.2 grains. The liquor being farther evaporated, cubes of 

 muriate of soda w r ere formed on the sides of the capsule, while 

 it was warm, and by continuing the evaporation, a quantity of 

 this salt was obtained, which weighed when dry 12.3 grains. 



A 



