Since these chemicals have become more widely available, some people have been dissolving them in solvents to allow for measuring doses out by liquid volume. The two most popular solvents for this purpose have been water and ethyl alcohol. There have been mixed reports as to the solubility of 2C-T-2 and 2C-T-7. Some have reported that when making solutions using water, with time, the drugs recrystallize and settle to the bottom. Reports of both unexpectedly strong and weak reactions raise questions about just how soluble these chemicals are. One factor which needs to be accounted for as well is that the solvents being used are not pure. Although advocates of this measurement technique recommend using distilled water, it is possible that people are also using plain bottled water and even unfiltered tap water. Some people use high proof liquor such as vodka or grain alcohol as a solvent. This offers the advantage of protecting against biological contaminants, and appears to offer somewhat better solubility. Regardless of which solvent is used, the impurities present in both liquor and water could conceivably alter the ability of the phenethylamines to enter and remain in solution, and could potentially react with them chemically. Another factor which could alter the ability of the chemicals to remain in solution is the temperature at which the solution is stored. Solutions which are stable at room temperature may separate out if stored in the refrigerator. The long term molecular stability of 2C-T-2 and 2C-T-7 in solution has never been explored, and there is the possibility that they may be less stable when stored in solution versus being stored in pure form.