Sodium carbonate, Na 2 C O 3, (also known as washing soda, soda ash and soda crystals) is the inorganic compound with the formula Na 2 CO 3 and its various hydrates. All forms are white, odourless, water-soluble salts that yield moderately alkaline solutions in water.
Potassium bicarbonate is a contact killer for Spanish moss when mixed 1/4 cup per gallon. History. The word saleratus, from Latin sal æratus meaning "aerated salt", first used in the nineteenth century, refers to both potassium bicarbonate and sodium bicarbonate. References