aspirin melting point range
Normally, aspirin melts between 138 and 140 C. The melting point range for salicylic acid is 158 -160 C. At these temperatures, the crystals' lattice energy is broken, and they undergo a phase change from solid state to liquid state.ormally, aspirin melts between 138 and 140 C. The melting point range for salicylic acid is 158 -160 C. At these temperatures, the crystals' lattice energy is broken, and they undergo a phase change from solid state to liquid state.