CONTAINING POTASH. 437 



analyzed by Berzelius, who obtained the follow- 

 ing constituents : 



Potash 18-233 



Magnesia 15*990 



Carbonic acid 34-53? 



Water 31-240 



100-000* 



This salt is undoubtedly a compound of 



1 atom bicarbonate of potash 11-5 



2 atoms carbonate of magnesia 10' 5 



9 atoms water 10' 125 



32-125 



For if we calculate the constituents per cent, of 

 such a compound salt, we obtain 



Potash 18-677 



Magnesia 15-564 



Carbonic acid 34-241 



Water 31-518 



100-000 



Numbers which are sufficiently near those of 

 Berzelius, to satisfy us that the constituents have 

 been rightly appreciated. 



12. Potash-phosphate of soda. This salt was Potash- 



phosphate 

 of soda. 

 * Afhandlingar, VI. 11. There is a translation of the paper of Ber. 



zelius in the 1st vol. of the Edinburgh Philosophical Journal, p. 63; but 

 the translation is often erroneous, obviously from the translator's ignorance 

 of the subject. 



Ee3 



