What Properties Do You Look For In A Good Solvent For Extraction?

The most important properties:
1. Miscible with the extract you want.
2. Cheap not expensive.
3. Available.
4. Non toxic.
5. Selective as possible for the material want to be extracted
6. Inert not reacte with the material you need
7. Easy to separate after extraction (or you have or know the method for separation)