Pertaining to, derived from, or contained in, sorrel, or oxalis; specifically, designating an acid found in, and characteristic of, oxalis, and also certain plant of the Buckwheat family
Colourless, crystalline, toxic carboxylic acid found in many plants, especially rhubarb, wood sorrel, and spinach. Because it forms soluble chelates with iron, some of the iron in these plants is not available nutritionally. However, this property makes it useful for removing blood and rust stains, cleaning metals other than iron, and flushing car radiators. Oxalic acid and its salts (oxalates) are used in many chemical processes