| Part of Speech | Definition | |
| Expression | 1. Which may be any alkaline carbonate, but which practically consists of sodium carbonate (sal soda), which is highly corrosive and destructive to vegetation; and white alkali , characterized by the presence of sodium sulphate (Glauber's salt), which is less injurious to vegetation. Black alkali is so called because water containing it dissolves humus, forming a dark-colored solution which, when it collects in puddles and evaporates, produces characteristic black spots.[Websters]. | |
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Common Expressions: BLACK ALKALI
| Expressions | Definition | ||
| Black alkali | Which may be any alkaline carbonate, but which practically consists of sodium carbonate (sal soda), which is highly corrosive and destructive to vegetation; and white alkali , characterized by the presence of sodium sulphate (Glauber's salt), which is less injurious to vegetation. Black alkali is so called because water containing it dissolves humus, forming a dark-colored solution which, when it collects in puddles and evaporates, produces characteristic black spots. Source: Webster's Revised Unabridged Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||
Specialty Expressions: BLACK ALKALI
| Expressions | Domain | Definition | |
| Black alkali | Mining | An old term for an alkali soil whose sodium tends to disperse organic matter and give a black color. Cf: white alkali. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
