The two-capillary pycnometer method is used to study the temperature depend
ence of the density of tin in the temperature range from T-melt to 770 K. T
he measurements are carried out in a superhigh vacuum in higher purity samp
les. The experimental data are described by an equation of the straight lin
e rho(T) = 7374.7 - 676.5 x 10(-3)T and do not confirm the anomaly (observe
d previously by some authors) in the form of a minimum on the polytherm of
the density of tin in the temperature range from 610 to 700 K.