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Updated: Jun 7, 2026

Methane Hydrate Crystallization on Sessile Water Droplets
Published on: May 26, 2021
Factors affecting crystallization of hydrates
Fang Tian1, Haiyan Qu, Anne Zimmermann
1Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Denmark.
This review explores thermodynamic and kinetic factors in hydrate crystallization. Understanding these factors enhances control over hydrate formation processes and optimizes drug bioavailability.
Area of Science:
- Crystallization Science
- Physical Chemistry
- Pharmaceutical Science
Background:
- Hydrate systems are crucial in pharmaceuticals, influencing drug stability and efficacy.
- Controlling hydrate crystallization is essential for consistent drug product performance.
Purpose of the Study:
- To elucidate the thermodynamic and kinetic factors governing hydrate crystallization.
- To enhance control over unit operations involving hydrate formation.
- To optimize drug bioavailability through improved hydrate understanding.
Main Methods:
- Review of thermodynamic principles in hydrate formation.
- Analysis of kinetic factors influencing crystallization rates.
- Case studies of polymorphic hydrate systems and pharmaceutical salt hydrates.
Main Results:
- Detailed discussion of competing thermodynamic and kinetic influences on hydrate crystallization.
- Exploration of the current understanding of hydrate formation mechanisms.
- Demonstration of hydrate investigation's importance in the pharmaceutical field.
Conclusions:
- Identification of critical factors for anhydrate/hydrate system investigation.
- Application of knowledge to control phase transformations in pharmaceutical processing and storage.
- Guidance for building desired functionality into final drug formulations.
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