For professionals in chemical procurement, R&D, and formulation, a thorough understanding of a product's properties and specifications is key to successful application. 1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP), CAS number 2809-21-4, is a cornerstone chemical in many industrial processes, renowned for its exceptional performance as a scale and corrosion inhibitor. As a leading HEDP manufacturer and supplier, we provide comprehensive information to help you make informed purchasing decisions.

HEDP, belonging to the organophosphorus acid family, exhibits a unique molecular structure that grants it potent chelating, scale-inhibiting, and corrosion-inhibiting capabilities. Its chemical formula, C2H8O7P2, and molecular weight of 206.02 underscore its functional composition. The compound is typically available in two main forms: a liquid solution, commonly around 60% active content, appearing as a clear, colorless to pale yellow liquid, and a solid form, usually a white crystal powder with an active content of 90% or higher. The choice between liquid and solid HEDP often depends on the specific application, handling preferences, and logistical considerations.

Key specifications that purchasers often scrutinize include active content, pH of a 1% solution, and impurity levels such as phosphorous acid, phosphoric acid, chloride, and iron. For instance, a typical specification for the liquid form might include an active content of 58.0-62.0%, a pH of ≤2.0, and very low levels of impurities. The solid form will have higher active content and correspondingly lower impurity levels. Understanding these specifications is crucial, especially when seeking HEDP for sensitive applications like electronics cleaning or specific detergent formulations where purity is critical.

The performance of HEDP is directly linked to its physical and chemical properties. It boasts excellent chemical stability under high pH values and temperatures up to 250°C, resisting hydrolysis and decomposition. This makes it a reliable choice for demanding industrial water treatment applications in circulating cooling water systems, low-pressure boilers, and oilfield operations. Its ability to chelate metal ions, particularly calcium, is fundamental to its effective antiscalant function.

For businesses looking to buy HEDP CAS 2809-21-4 liquid or powder, partnering with a reputable HEDP supplier in China is vital. We offer a stable supply chain, competitive HEDP prices, and rigorous quality control. Our commitment extends to providing detailed HEDP technical data and responsive customer service. Whether you are incorporating HEDP into detergent formulations, textile processing, or water treatment chemicals, our product ensures optimal performance. We invite you to contact our HEDP chemical supplier team to discuss your requirements and secure a high-quality, cost-effective solution.