with Olservatlons on the Analysis of Salt-hines. 15 



inonia did not impair the transparency. Carbonate of potash, 

 and muriate of barytes, produced a turbid appearance. The en- 

 tire Hquor was submitted to distillation, until the alcohol was abs- 

 tracted, and was then evaporated in an open bason, initil crystals 

 formed in it while hot. These were cubes of muriate of soda, 

 and this salt continued to be afforded by successive evaporations. 

 The last product deliquesced a little on exposure to the air, in- 

 dicating the presence of muriate of magnesia ; and the remain- 

 ing liquor afforded by evaporation a deliquescent, saline mass : 

 both these were washed with repeated portions of alcohol ; mu- 

 riate of magnesia was thus obtained, 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 wate", afforded by slow evapora- 

 tion sulphate of magnesia in prisms, which dried, weighed 6-3 

 grains. The crystallized muriate 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 oi sulphate 

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

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

 The licjuor diluted with distilled water, was not sensibly affected 

 l)y oxalate of ammonia ; it became slightly turbid vvith subcar- 

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

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

 tion, a crust of muriate of soda formed on the surface, and cry- 

 stals in cubes were deposited ; additional portions of them were 

 obtained by successive evaporations, and the liquor continued to 

 afford a crust of muriate of soda on its surface, while hot, until 

 it was almost entirely evaporated. A small portion of liquor 

 remained, which, on cooling, afforded prismatic crystals of sul- 

 phate of magnesia, which, freed from moisture, weighed 8-9 

 graius. The muriate of soda dried, weighed 1708 grains. 



The first portions of the aqueous solution F had deposited 

 ciystals of sulphate of soda on cooling; and the whole quantity 

 being partially evaporated, yielded an additional portion. 71)e 

 crystals of both, freed from adhering moisture, weighed 44*2 

 grains. The liquor being further evaporated, cubes of muriate 

 of soda were formed on the sides of the capsule, while it was 

 warm, and by continuing the evaporation, a (piantitv of this salt 

 was obtained, which weighed when dry 12-3 grains. A small 

 portion of liquor remained, which, by further evaporation, yielded 

 crystals of sulphate of soda to the amount of G grains, with cry- 

 stals of muriate of soda 2 grains. 



The portions of muriate of soda obtained in the preceding ex- 

 periments amounted to 765 •! grains. None of them, however, 



were 



