N-methylmorpholine oxide has a specific gravity of 1.07 at 25 °C.
Specific gravity is the ratio of the density of a substance to the density of a reference substance (usually water). The density of a substance is the mass per unit volume. Water has a density of 1 g/mL at 4 °C.
N-methylmorpholine oxide has a specific gravity greater than 1, which means it is denser than water. This is because N-methylmorpholine oxide is a polar molecule. The oxygen atoms in N-methylmorpholine oxide are partially negatively charged and the nitrogen atoms are partially positively charged. The positive and negative charges on the N-methylmorpholine oxide molecule attract each other, making the molecule denser.
