The N- ethyl -2- pyrrolidone is high polar, the high chemically stable achromatic color transparent liquid. Its boiling point 82-83 ℃(101.3Kpa), Refractivity N20d 1.4665, density 0.994. May is mutually soluble with the water and the common organic...
N-Methyl-2-Pyrrolidone, N-Ethyl-2-Pyrrolidone, Gamma-Butyrolactone...
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