A composition containing 2-propylheptyl silicate is obtained by heating ethyl silicate with an amount of 2-propylheptanol used in excess in the presence of titanium tetrabutoxide as catalyst to a temperature of not more than 220° C. while mixing, allowing them to react and, after the reaction, removing ethanol and excess 2-propylheptanol from the reaction mixture by distillation and obtaining the product, to obtain the composition comprising 2-propylheptyl silicate.