Heat accumulation material

Abstract

Abstract PURPOSE: To provide a heat accumulative material having a superior stability in phase variation by a method wherein one or more of compounds selected from a group of composite borites containing NaCl, RbCl, Na 3 AlF 6 and NaF are added by a specified weight or more to CaCl 2 .6H 2 O. CONSTITUTION: To a mixture containing CaCl 2 -6H 2 O or to CaCl 2 .6H 2 O are added one or more kinds of compounds by 0.01wt% or more selected from a group of composite borites containing NaCl, KCl, RbCl, NaF, Na 3 AlF 6 and NaF. Thereby, an over-cooling may be broken repetitively at 26°C, and tetrahydrate may not be crystalized. It is possible to provide a heat accumulation material having a stability for phase variation. COPYRIGHT: (C)1982,JPO&Japio

Inventors

• 👤 Hiroshi Kimura
• 👤 Junjiro Kai

Bibliographic Details