PURIFIER FOR STABLES. 



319 



Stable Potash Purifier. 



Potassium oxide 

 Sodium oxide 

 Calcium oxide 

 Magnesium oxide . 

 Sulphuric acid 

 Chlorine 



Per cent. 



6.45 



14.84 



9.72 



9.40 



22.01 



24.40 



This article has been offered for sale by the General 

 Potash-Salt Depot, No. 120 Liberty Street, New-York City, 

 at thirty-three dollars per ton of two thousand pounds, and at 

 five dollars and a half per barrel of two hundred and fifty 

 pounds. The proprietors recommend its application as an 

 efiicient absorber of the ammonia in stables, — an effect 

 which it is well qualified to accomplish, if properly applied. 

 The well-known peculiar re-action of some of its essential 

 constituents, as the chlorides of sodium and magnesium, on 

 plant-growth and on soil, renders it advisable to study care- 

 fully its influence on the action of the manures treated with 

 it, before using the substance in a liberal degree. The stable 

 potash purifier contained about 24 per cent of chloride of 

 sodium, or common salt, and 17 per cent of chloride of mag- 

 nesium, besides 10.2 per cent of chloride of potassium. 



Crude Sulphate of Magnesia (Kieserite'). 



Per cent. 



Magnesium oxide 

 Calcium oxide 

 Sulphuric acid 

 Chlorine . 

 Insoluble in water 

 Insoluble in acids 

 Moisture 



Sample No. I. was obtained of a dealer in Boston ; No. II., 

 of a dealer in New-York City. The former, containing from 

 60 to 65 per cent of salphate of magnesia, sold at from 

 twenty to twentj'^-five dollars per ton ; the latter, containing 

 from 50 to 55 per cent of that compound, was offered for 

 sale at from fourteen to fifteen dollars per ton. The use of 

 the crude sulphate of magnesia in part, in place of sulphate 

 of lime, as a superior material for the absorption of ammonia 



