Your aim is to find the most suitable solvent for the extraction of acetic acid from a mixture of 100kg acetic acid-water containing the 40% acetic acid by weight by using the 100kg of pure solvent. For this purpose, evaluating at least three different solvents for acetic acid extraction please select the most suitable one according to the criteria given below; i) Extraction yield ii) Distribution coefficient for solvent (or solvent selectivity) iii) Economical aspect iv) Environmental aspect (national environmental restrictions) HINT: Regulation on Control of Pollution Caused by Dangerous Substances in Water and Its Environment Then using the most suitable solvent you have chosen, determine the amount of solvent that should be used for the recovery of acetic acid with a yield of more than 90% from 100kg of acetic acid-water mixture containing 20% acetic acid by mass in a single-stage liquid-liquid extraction system