oxalic acid is an organic compound found in many plants. these include leafy greens, vegetables, fruits, cocoa, nuts and seeds . in plants, it’s usually bound to minerals, forming oxalate.
lists of foods high in oxalic acid vary greatly from source to source. the body is known to absorb oxalic acid from only a handful of foods, according to the university of british columbia, including peanuts, pecans, wheat bran, spinach, rhubarb, beets and beet greens and chocolate.
oxalic acid's main applications include cleaning or bleaching, especially for the removal of rust iron complexing agent . its utility in rust removal agents is due to its forming a stable, water-soluble salt with ferric iron, ferrioxalate ion. extractive metallurgy. oxalic acid is an important reagent in lanthanide chemistry.
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oxalic acid, also known as ethanedioic acid, is a naturally occurring compound which is found in many different types of vegetables.in its solid form, it is colorless and has the appearance of a white crystal substance when purified. for humans, oral and topical applications of this acid are highly toxic to the body due to its bleach-like and corrosive properties.
soy products are a significant source of oxalic acid, so in addition to miso, soy-based condiments/dishes like natto, cheonggukjang, and tempeh will contain high amounts. furthermore, other nut butter made from almonds, pistachios, and other nuts will be high in oxalate. dried fruit