Densities have been measured for glucose＋HCl＋water at 10 K intervals from 278.15 to 318.15 K. The apparent molar volumes (V_Φ,G), standard partial molar volumes (V⁰_Φ,G) for glucose in aqueous solution of 0.2, 0.4, 0.7, 1.1, 1.6, 2.1 mol•kg^－1 HCl have been calculated as well as volumetric interaction parameters (V_EG) for glucose-HCl in water and standard partial molar expansion coeffi-cients(∂V⁰_Φ,G/∂T)_p. Results show that (1) the apparent molar volumes for glucose in aqueous HCl solutions increases lineally with increasing molality of glucose and HCl; (2) V⁰_Φ,G for glucose in aqueous HCl solutions in-creases lineally with increasing molality of HCl; (3) the volumetric interaction parameters for glucose-HCl pair in water are small positive and vary slightly with temperature; (4) the relation between V⁰_Φ,G and temperature exists as V⁰_Φ,G＝a₀＋a₁(T－273.15 K) ^2/3; (5) values of (∂V⁰_Φ,G/∂T)_p are positive and increase as temperatures rise, and at given temperatures decrease slightly with increasing molalities of HCl, indicating that the hydration of glucose decreases with increasing temperature and molality of HCl. These phenomena are interpreted successfully by the structure interaction model.

Key words: glucose, HCl, density, apparent molar volume, standard partial molar isobaric expansion coefficient, structure interaction