C 98 3 



|6f81 and oxydes; forming fulrjhif.es (m) with the 

 earthy and alkaline bafes. 



2. Compound Salts. 



A. Base POTASH, or Vegetable, caustic^ 

 Jloced alkali. The impure fait, containing alkali, 

 which is obtained by evaporating the aqueous fo- 

 lution of wood afhes to drynefs j it is then folid, 

 white, cryftallized in rhombbidal plates. 



a. Carbonate* 

 of Pot-ash) or 



Synonymous Names, 

 f Fixed fait of tartar. 

 Vegetable fixed alkali. 

 Aerated vegetable fixed alkalL 

 Cretaceous tartar. 



pot-am combin-^ , 

 r . . ... , .. Mephitic tartar 

 ed w r ith carbonic 



acid; 



Mephtte of Pot-afh. 

 Nitre fixed by itfelf. 

 LAlkaheft of Van Helmont, 



It forms regular cryftals, which reprefent tetrahae- 

 dral prifms, terminating in fhort tetrahaedral points ; 

 has ah urinous tafte, and changes the fyrup of 

 violets green. — -Anal. Acid 23. Alkali 70. Wa- 

 ter 5, Bergman. 



fm J Salts formed by the combination of the fulphureous acid 

 with different bafes, and yield by the contact of almoft any acid, 

 the fmell of burning fulphur with eifervefcerice. 



* A fait formed by the anion of carbonic acid with diffe- 

 rent bafes. 



b* Muriate 



