P507 for Rare Earth Extraction

P507 (2-Ethylhexylphosphoric acid mono-2-ethylhexyl ester) is an acidic phosphorus-based extractant. It appears as a colorless to light yellow oily liquid with a density of approximately 0.94 g/mL and a flash point above 150°C. It is soluble in organic solvents such as kerosene and alcohols, but insoluble in water.