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Introduction Hypophosphorous Acid (H3PO2) , with the CAS number 6303-21-5 , is a vital chemical compound known for its unique reducing properties and wide-ranging industrial applications. This article provides an in-depth analysis of its core features, advantages, technical specifications, and application scenarios, while also highlighting the expertise of Tangshan Moneide Trading Co., Ltd. , the leading supplier of this critical chemical. Core Features of Hypophosphorous Acid Hypophosphorous Acid is a colorless, transparent liquid with the molecular formula H3PO2 . Its molecular weight is approximately 63.98 g/mol , and it is characterized by its strong reducing capabilities. The compound is typically available in a 50.0% minimum concentration , with strict limits on impurities such as phosphorous acid (0.5% max) , sodium (0.5% max) , and iron (10 ppm max) . These specifications ensure its purity and effectiveness in various industrial processes. One of the most notable features of Hypophosphorous Acid is its ability to act as a reducing agent in electroless plating, a process critical to the production of high-quality metal coatings. Its non-toxic nature further enhances its appeal for use in sensitive applications, making it a safer alternative to other reducing agents. Key Advantages of Hypophosphorous Acid Hypophosphorous Acid offers several advantages that make it indispensable in modern industrial chemistry: Powerful Reducing Agent: It is widely used in chemical reactions requiring controlled reduction, such as the synthesis of phosphine and phosphorus derivatives. Electroplating Enhancer: In nickel electroplating , it improves the adhesion, smoothness, and thickness of metal coatings, ensuring durable and high-quality finishes. Chemical Intermediate: It serves as a precursor for the production of hypophosphites and their salts, which are essential in pharmaceuticals, agriculture, and water treatment. Non-Toxic and Safe: Compared to other reducing agents, Hypophosphorous Acid has a lower toxicity profile, making it suitable for use in environments where safety is a priority. Technical Specifications Table Parameter Specification Chemical Name Hypophosphorous Acid Another Name Hypophosphoric Acid CAS Number 6303-21-5 Molecular Formula H3PO2 Molecular Weight 63.98 g/mol Appearance Colorless Transparent Liquid Concentration 50.0% min. Phosphorous Acid 0.5% max. Sodium (Na) 0.5% max. Iron (Fe) 10 ppm max. Chloride (Cl) 150 ppm max. Sulfate 100 ppm max. Applications of Hypophosphorous Acid Hypophosphorous Acid is a versatile chemical with applications across multiple industries. Below are some of its primary uses: Electroless Plating: It is a critical component in nickel electroplating , where it enhances the uniformity and durability of metal coatings. This process is widely used in the automotive and electronics industries to produce corrosion-resistant surfaces. Chemical Manufacturing: As a reducing agent , it is employed in the synthesis of phosphorus compounds, including phosphine , which is used in the production of pesticides and pharmaceuticals. Polymerization Initiator: Hypophosphorous Acid acts as a catalyst in the production of resins and plastics, contributing to the development of high-performance polymers. Water Treatment: It is occasionally used in water treatment processes to remove undesirable substances, ensuring the safety and quality of water supplies. Medical and Analytical Applications: The compound is utilized in the determination of arsenic , tellurium , and the separation of tantalum and niobium , making it an essential tool in analytical chemistry. About Tangshan Moneide Trading Co., Ltd. Tangshan Moneide Trading Co., Ltd. is a trusted supplier of high-purity chemicals, including Hypophosphorous Acid (6303-21-5) . With a commitment to quality and customer satisfaction, the company provides technical support and customized solutions to meet the diverse needs of industries worldwide. Their expertise in chemical distribution ensures that clients receive reliable and consistent products, backed by rigorous quality control measures. For more information about their products and services, visit the Hypophosphorous Acid page or explore their company website . Conclusion Hypophosphorous Acid (H3PO2) is a critical chemical with a wide array of applications, from industrial manufacturing to medical research. Its unique properties, including strong reducing capabilities and low toxicity, make it a preferred choice in numerous processes. Tangshan Moneide Trading Co., Ltd. continues to lead in providing high-quality Hypophosphorous Acid to support innovation and growth across industries. Authoritative Citations The information provided in this article is supported by standards and research from NIST (National Institute of Standards and Technology) , which plays a pivotal role in advancing chemical standards and measurement science. For further details on chemical safety and specifications, refer to NIST's comprehensive resources.