soda (so'dah). i

Caustic s., sodium hydroxid; ahard, white or grayish, opaque solid, of fibrous texture, melting just below a red heat, deliquescent in moist air, efflorescent in dry air, and very soluble in alcohol, le soluble in water. It is a strongly alkaline base, of very acrid and caustic taste. From its great affinity for water, it acts as a caustic, but is le diffusive in its action than caustic potash. 2. A name used by the laity for various salts of sodium (especially sodium carbonate or bicarbonate). The term is now usually restricted to the salts of sodium occurring native or used in commerce. When used without qualification, caustic s. is generally understood. List of poisons and their antidotes, see in appendix, page 938. liquor sodae. A solution of sodium hydroxid [U. S. Ph., 1890]. liquor sodae arseniatis. See liquor sodii arsenatis, under sodium [Br. Ph., 1885]. liquor sodae chloratae [U. S. Ph., 1890], liquor sodae chlorin a tae. See Labarraque's solution. s. tartrate. See pota ium and sodium tartrate, under pota ium [Br. Ph.]. washing s. Sodium carbonate.