HEDTA, chemically known as N-(2-(bis(carboxymethyl)amino)ethyl)-N-(2-hydroxyethyl)-Glycine, identified by the CAS number 150-39-0, stands as a significant chelating agent within various industrial and specialized applications. Presented typically as a white crystalline powder, HEDTA possesses a unique molecular structure (C₁₀H₁₈N₂O₇) with a molecular weight of 278.26. Its physical properties include easy solubility in hot water, alcohol, and caustic solutions, with slight solubility observed in cold water. It has a melting point around 212ºC. These properties make it highly effective in sequestering or binding metal ions, forming stable soluble complexes, which is the fundamental basis for its widespread utility.

The primary function of HEDTA as a multivalent chelating agent is its capacity to form strong coordination bonds with a wide array of common metal ions. This chelating capability is leveraged across numerous sectors to control the reactivity of metal ions, prevent undesirable reactions, or facilitate their removal or separation.

In the crucial field of water treatment, HEDTA is invaluable. Metal ions present in water, such as calcium, magnesium, iron, and heavy metals, can cause numerous problems including scaling, corrosion, and interference with process chemicals. HEDTA effectively chelates these ions, preventing scale formation in boilers and cooling systems, inhibiting corrosion, and improving the efficiency of disinfectants and other water treatment additives. Its stability across a range of pH levels makes it a robust choice for diverse water conditions.

Agriculture benefits significantly from HEDTA, particularly in addressing nutrient deficiencies in certain soil types. HEDTA can be used to chelate essential micronutrients like iron, forming HEDTA-Fe complexes. In alkaline soils where iron is often present but unavailable to plants, the chelated form ensures that the iron remains soluble and readily absorbable by plant roots, thereby preventing iron chlorosis and promoting healthy growth. It is used in formulating specialized fertilizers designed for challenging soil chemistries.

The textile industry utilizes HEDTA as a sequestering agent during dyeing, bleaching, and finishing processes. Metal ions in water or textile fibers can negatively impact dye uptake, color shade, brightness, and fabric strength. By chelating these ions, HEDTA helps to ensure uniform dyeing, prevent color changes, improve wash fastness, and protect fibers from damage during processing.

In electroplating and electroless plating, especially in processes involving silver, HEDTA plays a vital role. It is used to stabilize the plating bath by chelating metal ions, preventing precipitation and maintaining bath consistency. This leads to more uniform, adherent, and high-quality metal deposits on the substrate. Its ability to selectively chelate specific ions is particularly beneficial in complex plating formulations.

A highly specialized and important application of HEDTA is in the extraction and purification of rare earth elements. The separation of individual rare earth elements is a complex process often relying on solvent extraction or ion exchange techniques. HEDTA's specific chelation properties allow for the differential binding of various rare earth ions, enabling their effective separation and purification to high levels of purity, which is critical for their use in advanced technologies.

Beyond these major applications, HEDTA also finds utility in cosmetics to enhance product stability by chelating metal ions that can cause degradation or discoloration. It is used in the production of paper and leather as a process aid and has historical use in medicine as an antidote for certain types of metal poisoning, although medical applications require specific pharmaceutical grades and regulatory approval.

Quality is paramount for a chelating agent like HEDTA, as its effectiveness directly correlates with its purity and low levels of undesirable metal contaminants. Standard specifications often require a minimum assay of 98% or higher, with stringent limits on trace metals such as iron (Fe) and lead (Pb). Consistent quality ensures reliable performance across diverse applications, from sensitive analytical procedures to large-scale industrial processes.

Packaging for HEDTA powder typically involves 25kg PP plastic bags or drums, designed to protect the product from moisture and physical damage during transport and storage. Proper handling procedures are essential due to the crystalline powder form.

For businesses requiring HEDTA CAS 150-39-0, sourcing from a reputable manufacturer and supplier is crucial. Evaluating potential partners involves considering their production capabilities, quality control processes, and logistics expertise. The price of HEDTA can vary based on purity, order volume, market conditions, and packaging requirements. Understanding these factors is key for efficient procurement.

Those looking to buy or purchase HEDTA powder should engage with suppliers who can provide comprehensive product specifications, certificates of analysis, and reliable shipping options. Establishing long-term relationships with trusted vendors ensures a consistent supply of this essential chemical raw material, supporting continuous operations in diverse industrial sectors.

NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing high-quality chemical raw materials like HEDTA CAS 150-39-0, supporting a wide range of industrial needs with reliable products and service. Our focus is on delivering value through quality and consistency for all our customers.