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Oxalic Acid

Oxalic acid is an organic compound is a colorless solid crystalline that dilute in water and make a colorless solution. Oxalic acid have chemical formula C2H2O4 is classified as simple dicarboxylic acid, the strong of this acid is greater than acetic acid or vinegar. Oxalic acid often found in many plants and vegetables, also produce in the body by metabolism of glyoxylic acid or ascorbic acid. This acid is not metabolized by our body but excreted through urine. Too much oxalic acid in our body can react with calcium become calcium oxalc stone, can make problem for kidney. Plant that contain of high oxalic acid like in Asparagus.

Oxalic acid
Oxalic Acid

Oxalic acid many uses in anodizing aluminum to make black anodized color, use in anodizing oxalic bath for anodizing process. Oxalic acid also use as bleaching agent for both wood and stone. When exposed to the elements, can turn gray. When oxalic acid applied to old and graying wood floor, it brings wood floor to natural white color.

Other uses of oxalic acid is effectively remove ink, food stains, and other type of stains. Oxalic acid also can remove stain in the surface of stone, brick, linoleum and vinyl surface. Oxalic acid also can remove rust that commonly found on plumbing pipes and kitchen countertops, and major ingredient found in commercial rust removers for sinks, tubs and metal rust stains.

List of foods contain high oxalic acid very greatly from source to source. Our body can absorb oxalic acid from only a handful of foods. Food containing oxalic acid like peanuts, pecans, wheat bran, spinach, rhubarb, beets and beet green and chocolate.

The cautious of meal some vegetables contain oxalic acid dont mixed or eat at the same time with food and drink contain of calcium to reduce the rist of getting kidney stones. The researcher tested nine raw and cooked vegetables and found that boiling and steaming of vegetables will significantly reduce of oxalic acid contain with a high contain of compound, such as spinach.

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