C 100 ] 



B. Base SODA. Cauftic foda, marine alkali, 

 or mineral alkali united to carbonic acid, which 

 is obtained from the afhes of the, kali fpinofum, 

 and of many fea plants. 



Synonymous Names, 

 f Natrum or natron. 

 Bafe of marine fait. 

 Marine or mineral alkali. » 

 Cryftals of foda. 



a> , • Cretaceous foda. 



a. Carbonate J . .. t , r , 

 of Soda • derated i°da. 



' EfTervefcent foda. 

 Mephite of foda. 

 Aerated mineral fixed alkali. 

 EfTervefcent mineral fixed alkali. 

 LChalk of foda. 



is a perfeft neutral fait, confiding of the carbonic 

 acid, and pure or cauftic foda; has rhomboidal 

 cryftals. Found in Hungary, Egypt, Perfia, the 

 Eaft Indies, and China; is found ready formed 

 on the furface of the earth. — Anal. Acid 16. 

 Alkali 20. Water 47. Delamethrie. 



b. Borate* of Soda. Greyim and greenifh 

 white, moftly in tabular, fix-fided prifms. Found 

 on the fnow mountains of Tibet, &c. — Anal, 

 Acid. 34. Alkali 17. Water 47. Delamethrie. 



c. Muriate of Soda> or marine fait, or culi- 

 nary fait. Cryftallized in cubes, . amorphous, 



♦Borax Tinkah 



fibrous 



