1886.] 



PUBLIC DOCUMENT — No. 33. 



107 



Muriate of Potash. 



[Collected in Worcester, Mass.] 



Per cent. 



Moisture at 100° C . • • 1.63 



Potassium oxide, • • 63.68 



Insoluble matter, .15 



Valuation per 2,000 lbs $45 63 



Sulphate of Potash. 



[Sent on from New York City.] 



Per cent. 



Moisture at 100° C, .35 



Potassium oxide, 47.60 



Sulphuric acid, . . 44.83 



Insoluble matter, . .67 



Valuation per 2,000 lbs., . . $69 02 



[I. Double Sulphate of Potash and Magnesia, sent on for examination.] 

 [II. Double Sulphate of Potash and Magnesia, sent on trom Hatfield, Mass.] 



The samples represent, probably, the extremes in com- 

 position. Large percentages of chlorides are, in many in- 

 stances, considered objectionable, in high-priced sulphates. 

 The articles have been oflfered at from $38 to $40 per ton. 



