When sourcing EDTA-2Na, or Disodium Edetate Dihydrate, it's crucial to understand the distinctions between its various grades, particularly Industrial Grade and Cosmetic Grade. These grades differ primarily in their purity levels and the permissible limits for impurities such as heavy metals and iron. This differentiation is essential for ensuring optimal performance and compliance in specific applications.

Industrial Grade EDTA-2Na typically features an assay of ≥99.0% and has slightly higher allowable limits for certain impurities. It is well-suited for applications like water treatment, detergents, and general industrial cleaning where the presence of trace impurities does not significantly impact the end product's performance. On the other hand, Cosmetic Grade EDTA-2Na boasts a higher purity, often ≥99.5%, with significantly stricter limits on heavy metals and iron. This higher purity is critical for its use in personal care products and cosmetics, where direct human contact necessitates the utmost safety and minimal risk of irritation or adverse reactions.

Choosing the correct grade of EDTA-2Na is paramount. Using a lower grade in cosmetic formulations could lead to product instability or regulatory issues, while using a higher grade in less sensitive industrial applications might be unnecessarily costly. NINGBO INNO PHARMCHEM CO.,LTD. offers both Industrial and Cosmetic Grade EDTA-2Na, providing clear specifications to help clients select the most appropriate product for their specific needs, whether it's for industrial processes or delicate cosmetic blends.