£72 ANALYSIS OF A MINERAL WATER. 



superaccUtc of 34. A portion of gas produced as in 33, was exposed to 



lead; 



the action of a solution of superacetate of lead, by which 

 part of it was absorbed. 



& lime water. 35. Another portion of this gas, and also the residua of 

 the experiments 33 and 34 were severally exposed to the 

 action of 'lihje water. A corresponding proportion from each 

 of the gasses was absorbed. 



Precipitate 36. The precipitate obtained by boiling a quantity of the 



from boiling ^sh mineral water to about one half was washed, dried, 

 treated with ' ' 



muriatic acid, and treated with dilute muriatic acid. A part of it only was 

 dissolved. 



37. A solution of pure ammonia threw down a white pre- 

 cipitate from the muriatic solution in 36. 



38. Oxalate of ammonia occasioned a precipitate in the 

 same solution. 



The residuum 30,. The powder which resisted the action of the muriatic 

 examine . ac jj m ^q w ^ g ] ;0 j] e ^ ; n subcarbonate of soda, and then in 

 a solution of pure potash. A part of it was dissolved by 

 each. 



40. The powder left undissolved by the last operation was 

 boiled in muriatic acid. What remained was melted in a 

 large proportion of pure potash. Silex was precipitated on 

 the addition of distilled water. 

 Thewatereva- 41. A quantity of the fresh water was evaporated ]to dry- 

 po rated to dry- Ress . The dry mass was treated with successive portions of 

 alcohol, the specific gravity of which was 815°. The resi- 

 duum, which resisted the action of the alcohol, was dis- 

 solved in water, filtered, and slowly evaporated. The cry- 

 stalline substance thu» successively separated, was pure 

 common salt. 

 Contentsof the From these experiments it appears, that this mineral wa- 

 iter, ter contains a small proportion of sulphuretted hidrogeh, 

 the same of free or rather supercornbined. carbonic acid, 

 carbonate of iron, carbonate's of lime, of magnesia, and of 

 ar^il, probably carbonate of manganese also, a minute pro- 

 portion of sulphate of time, with muriates of soda, lime, 

 magnesia* and of argil, silica, with azote, or atmospheric 

 air. 

 Their propor- ' To obtain an approximation to their 'respective proportions, 

 tions tocamin- t k e following additional' experiments were made. 

 ed# I 42. Grains 



