Carbonate of Soda. NaO, CO2 +10 HO. Called also the Subcarbonate and Monocarbonate of Soda. Neutral Carbonate of Soda. Comp. 1 Eq. Soda = 31, + 1 Carbonic Acid = 22, + 10 Water = 90 = 143, Eq. Wt.

Med. Prop. and Action. Antacid and deobstruent; in large doses it is an irritant poison It is more irritant than the Bicarbonate of Soda, and is more analogous in its effects to the Carbonate of Potash. It is sometimes used in making effervescing draughts; thus gr. xx. of the salt saturates gr. ixss. of Citric Acid, gr. xss. of Tartaric Acid, or fl. drs. iiss. of Lemon-juice.

Offic. Prep. SodAe Carbonas Exsiccata (Dried Carbonate of Soda. The Salt deprived of its water of crystallization). Dose, gr. v. - gr. xv. .

Dose of Carbonate of Soda, gr. x. - gr. xxx. Therapeutic Uses. Similar to those of PotassAe Carbonas.