Paraffin wax is mainly some long-chain hydrocarbons, which belong to nonpolar molecules, while dichloromethane is polar molecules. According to the principle of similar compatibility, paraffin should be insoluble in dichloromethane. I haven't done experiments either, but it's very rare to violate the principle of similarity and compatibility. Let me explain the content of similar compatibility principle: polar molecules are generally soluble or soluble in polar solutions and insoluble or insoluble in nonpolar solutions; Nonpolar molecules are generally soluble or easily soluble in nonpolar solutions, but insoluble or insoluble in polar solutions. The basis for judging whether a molecule is nonpolar is whether the charge distribution inside the molecule is balanced (that is, whether there will be electrodes). If you are not sure, you can look up the chemistry book.