EDTA 2Na, also known as Disodium EDTA dihydrate or Ethylenediaminetetraacetic acid disodium salt dihydrate, is a widely utilized chemical compound with the CAS No. 6381-92-6 and molecular formula C10H14N2O8Na2·2H2O. It presents as a white crystalline powder, highly valued across numerous industries for its exceptional chelating properties.

As a potent chelating agent, EDTA 2Na has the ability to form stable, water-soluble complexes with various metal ions, including alkali metals, transition metals, and rare earth elements. This ability to sequester or bind metal ions is the foundation of its utility, preventing undesirable reactions catalyzed by these metals and improving the stability and performance of diverse products and processes.

The quality of EDTA 2Na is paramount for its effectiveness. High-grade material typically boasts a content of ≥ 99%. Purity is further defined by minimal levels of impurities such as chloride (≤ 0.01%), sulfate (≤ 0.05%), heavy metal (Pb, ≤ 0.001%), and Fe (≤ 0.001%). These specifications ensure that the product performs reliably without introducing contaminants into sensitive applications. A critical measure of its functionality is its chelation value, which should be ≥ 265 mgCaCO3/g, indicating its strong capacity to bind calcium ions, a key aspect of its use in water softening.

The applications of EDTA 2Na are extensive and indispensable. In the detergent industry, it serves as a crucial builder ingredient. By chelating calcium and magnesium ions responsible for water hardness, it enhances the effectiveness of surfactants, prevents soap scum formation, and protects washing machine components from scale buildup, leading to superior cleaning performance.

In cosmetics and personal care products, EDTA 2Na functions as a stabilizing agent and preservative enhancer. It binds metal ions that can cause discoloration, rancidity, or degradation of ingredients, thereby extending shelf life and maintaining product integrity and appearance. From shampoos and conditioners to lotions and creams, its chelating action is vital for product stability.

The textile industry benefits significantly from EDTA 2Na's properties. It is used as a dyeing auxiliary and fiber processing additive to prevent interference from metal ions present in water or fibers. This ensures uniform dyeing, prevents color unevenness, and improves the overall quality of finished textiles.

Water treatment is another major application area. EDTA 2Na is employed to remove or control unwanted metal ions in industrial water systems, preventing scale formation and corrosion, which can prolong the life of equipment and improve process efficiency. It can also be used as a tracer agent in hydrological studies.

Beyond these, EDTA 2Na finds uses in areas such as the bleaching process for color photographic materials, as a blood anticoagulant in medical applications by binding calcium essential for clotting, as a stabilizing agent in various chemical formulations, and as an initiator in the polymerization of synthetic rubber.

The physical form, a white crystalline powder, makes it easy to handle, transport, and incorporate into various manufacturing processes. Packaging is typically provided in standard bags, such as 25KG bags, though customer-defined options, including smaller packs or larger drums, are often available to suit specific needs. Proper storage conditions are essential to maintain product quality, generally requiring a cool, dry environment, avoiding high heat and humidity. Recommended storage is often between 15°C and 30°C with relative humidity between 35% and 60%.

For businesses requiring high-quality EDTA 2Na, partnering with a reputable source is critical. NINGBO INNO PHARMCHEM CO.,LTD. is a trusted manufacturer and experienced supplier of fine chemicals, including high-purity EDTA 2Na powder. We understand the importance of consistent quality and reliable supply for our customers' production needs. Prospective clients interested to buy or purchase this essential chemical can easily inquire about product specifications, packaging options, and lead times. Our dedicated team is ready to provide detailed information on the current market price and assist with procurement logistics to ensure a smooth transaction and timely delivery. As a reliable supplier, NINGBO INNO PHARMCHEM CO.,LTD. is committed to meeting the diverse requirements of industries relying on high-performance chelating agents like EDTA 2Na.