88 Analysts of ike lately Uncovered 



lected, strongly effervesced with ninriatic acid, but no com- 

 plete solution could be tffitttd by that agent. Ttic insoluble 

 part, 'separated by the filler, h.ul a cry»lalhne appearance. 

 The miuidtic solution became turbid by the admixture of 

 fluate of siida, bv oxalate of aiinnonia, and by other tests, 

 indicating the presence ot lime. 



Experimevt XXV. — ^Thc substance which resisted the 

 action of muriatic aeiti in the preceding process, was com- 

 pletely soluble by ebullition in 6t)0 tmies its quantity of 

 water, the solution was decomposable by oxalate ot anmunia, 

 by fluate of soda, and by barytic water. 



Experiment XXVI. — To learn whether the lime detected, 

 was present in the water in combination with carbonic acid, 

 or with sulphuretted hydrogen, a narrow-mouthed jar con- 

 taining a deterniinate bulk of the sulphuretted saline water, 

 and furnished with a crooked glass tube, ternninating under 

 a cylinder filled with lime water, was gradually made to 

 boil, the lime-water became turbid, and a copious precipi- 

 tate appeared. The obtained precipitate efiervesced with 

 jiuirlatic acid, emitting at the same time a strong odour of" 

 sulphuretted hydrogen gas. The solution diluted with water 

 occasioned a brown precipitate wheq mingled with nitrate of 

 bismuth or nitrate of silver. 



Experiment XXVII. — The lime winter from which the 

 before-obtained precipitate has been separated was void of 

 odour, it possessed a pungent bitter taste. White oxide of 

 bisrnuth diffused through it, became instantly black. It 

 chanced the colour ot' yellow sulphate of mcicury to brown ; 

 red oxide of lead acquired by ii a purple colour, and paper 

 impregnated with a solution of nitrate of silver immersed in 

 this fluid became iiray. Concentr.ated nitrous acid rendered 

 it turbid. From these preliminary inquiries it became evi- 

 dent, that both cari)onatc ami hvdro-sulphnret of Hme exist 

 in the water, the first and part of the latter being precipi- 

 tated by t'c.c action of lime water, though a considerable 

 portion of the hvdro-sulphnret remained in solution : hence 

 lime water could not be employed to separate the carbonic 

 ccid from the sulphuretted hydrogen gas contained in the 

 tulpharetted saline water of Cheltenhaui. 



Expirimeni 



