Standard Food Grade 75% 85% Phosphoric Acid CAS No 7664-38-2 Free Sample

§Applicant:

Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. The phosphoric acid also serves as a preservative. Soft drinks containing phosphoric acid, which would include Coca-Cola, are sometimes called phosphate sodas or phosphates.

In anti-rust treatment by phosphate conversion coating or passivation.
To prevent iron oxidation by means of the Parkerization process.
As an external standard for phosphorus-31 nuclear magnetic resonance.
In phosphoric acid fuel cells.
In activated carbon production.
In compound semiconductor processing, to etch Indium gallium arsenide selectively with respect to indium phosphide.
In microfabrication to etch silicon nitride selectively with respect to silicon dioxide.
As a pH adjuster in cosmetics and skin-care products.
As a sanitizing agent in the dairy, food, and brewing industries.
 

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