orthophosphoric acid Supplier distributor manufacture in Andhrapradesh india

Phosphoric acid (also known as orthophosphoric acid or phosphoric(V) acid) is a mineral (inorganic) and weak acid having the chemical formula H3PO4. Orthophosphoric acid refers to phosphoric acid, which is the IUPAC name for this compound. The prefix ortho- is used to distinguish the acid from related phosphoric acids, called polyphosphoric acids. Orthophosphoric acid is a non-toxic acid, which, when pure, is a solid at room temperature and pressure. The conjugate base of phosphoric acid is the dihydrogen phosphate ion, H2PO−4, which in turn has a conjugate base of hydrogen phosphate, HPO2−4, which has a conjugate base of phosphate, PO3−4. Phosphates are essential for life.

Among many applications, phosphoric acid is used:

    As a solution for anodizing.
    As an external standard for phosphorus-31 nuclear magnetic resonance (NMR).
    As a buffer agent in biology and chemistry. For example, a buffer for high-performance liquid chromatography.
    As a chemical oxidizing agent for activated carbon production, as used in the Wentworth process.
    As the electrolyte in phosphoric-acid fuel cells.
    With distilled water (2–3 drops per gallon) as an electrolyte in oxyhydrogen generators.
    As a catalyst in the hydration of alkenes to produce alcohols, predominantly ethanol.
    As an electrolyte in copper electropolishing for burr removal and circuit-board planarization.
    As a flux by metal workers and hobbyists (such as model railroaders) as an aid to soldering.
    In compound semiconductor processing, phosphoric acid is a common wet etching agent: for example, in combination with hydrogen peroxide and water it is used to etch InGaAs selective to InP.
    Heated in microfabrication to etch silicon nitride (Si3N4). It is highly selective in etching Si3N4 instead of SiO2, silicon dioxide.
    As a cleaner by construction trades to remove mineral deposits, cementitious smears, and hard-water stains.
    As a chelant in some household cleaners aimed at similar cleaning tasks.
    In hydroponics pH solutions to lower the pH of nutrient solutions. While other types of acids can be used, phosphorus is a nutrient used by plants, especially during flowering, making phosphoric acid particularly desirable.
    As a pH adjuster in cosmetics and skin-care products.
    As a dispersing agent in detergents and leather treatment.
    As an additive to stabilize acidic aqueous solutions within a wanted and specified pH range.
    As a sanitizing agent in the dairy, food, and brewing industries.
    As a main reactive agent in electrochemical weld cleaning.
    In soil organic carbon determination.
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