Solubility of individual light fullerenes (C₆₀ and C₇₀) in n-heptane was measured in the ranges of pressure from 0.1 up to 110 MPa and temperature from 298.3 to 358.3 K. At 0.1 MPa, the solubility diagrams of the C₆₀ – n-heptane, C₇₀ – n-heptane binary systems consist of only one branch corresponding to crystallization of mono-solvated fullerenes – C₆₀·C₇H₁₆ and C₇₀·C₇H₁₆. The compositions of the solid crystalline solvates were determined by thermogravimetric analysis. Thermodynamic description of the temperature and pressure dependences of solubility was performed using the van-der-Waals differential equation. As a result, the changes of the isothermal compressibility, molar volume, isobaric heat capacity and molar entropy in the process of the light fullerenes dissolution with formation of infinitely diluted solution were calculated.

在压力从0.1到110 MPa和温度从298.3到358.3 K的范围内，测量了各个轻富勒烯（C ₆₀和C ₇₀）在正庚烷中的溶解度。在0.1 MPa时，C ₆₀ – n的溶解度图庚烷，C ₇₀ - ñ庚烷二元系统由对应于单溶剂化富勒烯的结晶只有一个分支的- Visual C ₆₀ ·C ₇ H ^ ₁₆和C ₇₀ ·C ₇ ħ ₁₆。通过热重分析确定固体结晶溶剂化物的组成。使用van-der-Waals微分方程对溶解度的温度和压力依赖性进行热力学描述。结果，计算了在富勒烯轻质溶解并形成无限稀释溶液的过程中，等温压缩性，摩尔体积，等压热容和摩尔熵的变化。