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Phosphoric Acid

Univar USA Phosphoric Acid 75% Food Grade - 55 Gallon Drum
Currently Non-Orderable
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Phosphoric acid is a type of mineral-based weak acid with a chemical formula of H3PO4. The inorganic acid is used in the aerospace industry for cleaning purposes. It can be used to remove residues, dirt, buildup and other contaminates from surfaces before painting or installing additional components. Phosphoric acid is easy to use and may be diluted to the desired strength for a particular project. It is sold in liquid form and is colorless, odorless and non-volatile. Highly concentrated formulas may be moderately corrosive.

In addition to cleaning, phosphoric acid may also be used to remove rust. For rust removal, the acid is applied directly to the rusted iron, steel or other metal surface. It changes the rust to ferric phosphate, allowing it to be removed. Certain formulations of phosphoric acid are sometimes sold as rust removers or rust killers. It may take multiple applications of the acid to remove all of the rust on a particular surface, though with regular use it is possible to completely remove the rust and restore the part. Once the rust is removed, the surface should be treated with a corrosion-preventing paint or sealant.

Other less common applications for phosphoric acid include acting as a solution for anodizing metals, acting in the production of certain alcohols, aiding in soldering, cleaning equipment and surfaces in industrial applications and removing mineral deposits on surfaces.

Shop at SkyGeek for the best selection of industrial-strength phosphoric acid. We carry phosphoric acid in all sizes of containers and at our everyday low prices. Order phosphoric acid for use in cleaning aircraft components, removing rust and more. The versatile solution is colorless and odorless, leaving behind no messy residues. Order your phosphoric acid today to take advantage of our low prices on all of your favorite brand-name products. For more information about any of the phosphoric acid products shown here, simply click on the image of the product you are interested in from the list shown.
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