The density of liquid GaSb was measured using a double-bob Archimedean method. The melting point density was measured to be 6.058 g/cm(3). With temperature increasing the density gradually decreased and could be best fitted by a polynomial equation: p 7.560 - 22.5 x 10(-4)T + 7.36 x 10(-7)T(2) where rho is in g/cm(3) and T in K. (c) 2006 Elsevier B.V. All rights reserved.