# Dissolution

Dissolution is a dynamic process by which ions from a surface of a solid material are released over time into the background solution. Various physicochemical factors affect the dissolution of ENMs. Those include characteristics of particles (e.g. material, surface area, engineered surface coatings, aggregation state) as well as of the exposure media (pH, redox potential, dissolved salts & organics, temperature).

## Algorithms

 Dissolution rate constant $$\frac{d[M^{z+}]}{dt} = k_{diss}([M^{z}]_{eq}-[M^{z+}]_{t})$$Dissolution rate

 Consult the NanoFASE Library to see abstracts of these deliverable reports: NanoFASE Report D8.1 Alignment between model requirements and experimental procedures NanoFASE Report D8.2 Driving Forces of NM Behaviour in Natural Waters for Agglomeration and Transformation Misra et al (2012) – Sci Tot Environ 438, 225-232. https://doi.org/10.1016/j.scitotenv.2012.08.066

## Contact

Julián Gallego

University of Gothenburg, Sweden

Frank von der Kammer

University of Vienna, Austria