Fragrance Type  % oil      % alcohol    % water

Perfume         15 – 30       90 – 95       5 – 10

Eau de perfume8 – 15      80 – 90      10 – 20

Eau de toilette   4 – 8        80 – 90      10 – 20

Eau de cologne 3 – 5        70                30    

Cologne splash 1 – 3       80                 20

In perfumery a number of solvents as a composition of mixtures could be used.

Following research paper would be useful for the same:

1. https://sumpena.wordpress.com/2007/03/23/making-perfume-understanding-fragrance/

2. http://www.google.co.in/patents/US5342829

3. http://www.thegoodscentscompany.com/cosdata/solvent.html

4. http://www.stephen-herman.com/Blackwell.pdf

5. https://knowledge.ulprospector.com/330/pcc-solubilizing-oils-water/

Good luck! 

Thank You Very Much to Prof. Akleshwar Mathur and Prof. Mariana Araujo Esposito.