Ethylenediaminetetraacetic Acid (EDTA) exists in several forms, each with distinct properties that make them suitable for specific industrial applications. Understanding these variations – primarily EDTA acid, disodium EDTA (EDTA-2Na), and tetrasodium EDTA (EDTA-4Na) – is crucial for optimizing chemical procurement and application efficiency. As a comprehensive chemical supplier, NINGBO INNO PHARMCHEM CO.,LTD. offers these key forms and guides businesses in selecting the most appropriate one.

EDTA acid (H4EDTA), with CAS number 60-00-4, is a crystalline powder that is poorly soluble in water but readily soluble in alkaline solutions. Its primary characteristic is its highly acidic nature. While effective as a chelating agent, its solubility limitations can sometimes make it less convenient for direct use in aqueous industrial processes compared to its salt forms.

Disodium EDTA (EDTA-2Na), with CAS number 6381-92-6, is more water-soluble than the acid form and possesses a neutral to slightly acidic pH in solution. It is widely used in applications where a moderate pH is preferred, such as in certain cosmetic formulations, pharmaceuticals, and as a stabilizer in some industrial processes. Its balanced properties make it a versatile choice for many applications requiring effective metal ion sequestration.

Tetrasodium EDTA (EDTA-4Na), with CAS number 64-02-8, is highly soluble in water and exhibits an alkaline pH in solution. This form is often preferred in applications requiring higher pH conditions, such as in detergent formulations, industrial cleaning agents, and certain water treatment scenarios where alkalinity is beneficial. Its excellent solubility and strong chelating power at higher pH make it highly effective.

When considering where to buy EDTA chelating agent online, choosing the right salt form is as important as selecting a reliable EDTA supplier China. Whether you need the acidic properties of EDTA acid, the balanced pH of EDTA-2Na, or the high solubility and alkalinity of EDTA-4Na, NINGBO INNO PHARMCHEM CO.,LTD. can meet your needs. Our competitive EDTA tetrasodium salt price and other forms ensure you receive high-quality materials for your specific industrial requirements. Rely on us as your trusted EDTA manufacturer for all your chelating agent needs.