S,S-乙二胺-N,N’-二琥珀酸的结晶形式、相应制备方法及用途
By providing S,S-ethylenediamine-N,N'-disuccinic acid in crystalline forms B, C, and F, the problems of high water content and strong hygroscopicity in the prior art are solved, achieving stability and ease of formulation in detergent and cosmetic compositions. This also addresses the issues of high water content and hygroscopicity in the prior art, providing easy formulation, storage, and stability, as well as low hygroscopicity, making it suitable for applications in detergent and cosmetic compositions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BASF SE
- Filing Date
- 2024-11-15
- Publication Date
- 2026-07-17
AI Technical Summary
In the prior art, the solid form of S,S-ethylenediamine-N,N'-disuccinic acid has a high water content, strong hygroscopicity, and instability, making it difficult to store and mix properly in industrial applications.
Three new crystalline forms, B, C, and F, are provided, identified by specific X-ray powder diffraction pattern characteristic reflection peaks, which significantly reduce water content and improve stability, including both dihydrate and anhydrous forms, suitable for different environmental conditions.
It achieves good storage stability and low hygroscopicity under normal environmental conditions, making it suitable for detergent and cosmetic compositions, especially under high temperature and high humidity conditions, and easy to formulate and transport.
Smart Images
Figure CN122422291A_ABST