Alkali

A soluble mineral salt.

Soluble mineral salt of alkali metals having characteristically “basic” properties.

Carbonates or hydroxides of an alkali metal (e.g., sodium, potassium, calcium, lithium among others) found in some arid soils and playa lakes; detrimental to agriculture.

A soluble salt obtained from the ashes of plants. A substance having marked basic properties. Various soluble salts, principally of sodium, potassium, magnesium, and calcium, that have the property of combining with acids to form neutral salts and may be used in chemical water treatment processes.