title: Determination of phase transitions in gutta-percha by differential thermal analysis.
abstract: Pure gutta-percha was heat-treated in a differential thermal analyzer. The high melting form crystallized on cooling when gutta-percha was heated to 70 C or less. Above 74 C, crystallization into the low melting form predominated. Either polymorph can be selectively crystallized by control of the heat-treatment temperature before cooling.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003460:Crystallization; D004055:Differential Thermal Analysis; D006171:Gutta-Percha; D006358:Hot Temperature
chemical_list: D006171:Gutta-Percha