The density of neodymium-doped calcium aluminate (<1 mol% Nd(2)O(3)(.)50% CaO(.)50% Al2O3) liquid was measured over a wide temperature range using an electrostatic levitation furnace. The density was obtained using an UV-based imaging technique that allowed excellent illumination throughout all phases of processing, including elevated temperatures. Over the 1560-2000 K temperature range, the density could be expressed as rho(T) = 2.83 x 10(3) - 0.21(T - T-m) (kg(.)m(-3)) (+/-2%) with T-m = 1878 K, which yielded a volume coefficient of thermal expansion alpha(T) = 7.5 x 10(-5) K-1.