POLYSORBATE 60 is a mixture of Stearate and Palmitate partial esters of Sorbitol and Sorbitol anhydrides condensed with approximately 20 moles of Ethylene Oxide (C2H4O) for each mole of Sorbitol and its mono- and dianhydrides. It is a lemon to orange- coloured, oily liquid, or semigel having a faint characteristic odour and a warm, somewhat bitter taste. It is soluble in water, in aniline, in ethyl acetate, and in toluene, but is insoluble in mineral oil and in vegetable oils. It conforms to the regulations of the federal Food and Drug Administration pertaining to specifications for fats or fatty acids derived from edible sources.

POLYSORBATE 80 is a mixture of Oleate partial Esters of Sorbitol and Sorbitol anhydrides condensed with approximately 20 moles of ethylene oxide (C2H4O) for each mole of Sorbitol and its mono- and dianhydrides. It is a yellow- to orange-coloured, oily liquid having a faint, characteristics odour and a warm, somewhat bitter taste. It is very soluble in water, producing an odourless, nearly colourless solution, and is soluble in alcohol, in fixed oils, in ethyl acetate, and in Toluene. It is insoluble in mineral oil. It conforms to the regulations of the Federal Food and Drug Administration pertaining to specifications for fats or fatty acids derived from edible sources.