Product Introduction
Phosphorous Acid (CAS 13598-36-2), with the chemical formula H3PO3, is a white crystalline solid that is highly deliquescent and easily soluble in water and alcohol. Unlike phosphoric acid, phosphorous acid is a diprotic acid (only two protons are acidic) and acts as a strong reducing agent. It is an essential chemical intermediate in the production of various phosphorus-based products, including water treatment chemicals, stabilizers for plastics, and systemic fungicides in agriculture.
Product Selling Points
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High Assay (≥ 99.0%): Chemfine provides high-purity crystalline grades with minimal phosphoric acid and sulfate impurities.
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Excellent Solubility: Dissolves rapidly and completely, ensuring high efficiency in aqueous formulations.
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Strong Reducing Power: Highly effective as a reducing agent in chemical synthesis and laboratory applications.
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Low Heavy Metal Content: Suitable for sensitive manufacturing processes including pharmaceutical intermediates.
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Stable Crystalline Form: Controlled drying processes prevent caking and ensure ease of handling and dosing.
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Global Logistics: Shipped in UN-certified moisture-proof packaging to maintain product integrity during transit.
Applications
Plastic and Polymer Industry Used as a raw material for the production of phosphite stabilizers (e.g., Lead Phosphite), which prevent the degradation of PVC and other polymers during processing.
Agrochemical Manufacturing A key intermediate for producing phosphite-based fungicides and plant nutrients. It is the precursor for various systemic pesticides and glyphosate-type herbicides.
Water Treatment Used in the synthesis of organic phosphonic acids (such as ATMP, HEDP), which serve as highly effective scale and corrosion inhibitors in industrial cooling systems.
Chemical Reducing Agent Used in synthetic organic chemistry as a mild reducing agent for various functional group transformations.
Textile and Dye Industry Acts as a decolorizing agent and antioxidant in the production of high-grade synthetic fibers and dyes.
Packaging
Standard industrial packaging options for Phosphorous Acid include:
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25kg or 50kg plastic woven bags with double-layer PE moisture-proof inner bags.
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1000kg Jumbo bags (super sacks) for bulk industrial consumption.
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Customized moisture-proof drums or pails available upon request.
Storage
Phosphorous Acid is highly hygroscopic (absorbs moisture from the air) and corrosive. It must be stored in a cool, dry, and well-ventilated warehouse. Keep containers tightly sealed to prevent deliquescence. Store away from strong bases, oxidizing agents, and reactive metals. Properly stored, it has a shelf life of 24 months.
