公开(公告)号：US20190002302A1

公开(公告)日：2019-01-03

申请号：US16060118

申请日：2016-12-08

申请人： Kyoto University

发明人： Naoyuki Hatada ,  Tetsuya Uda

IPC分类号： C01F17/00

摘要： An object of the present invention is to provide an inexpensive and highly safe compound useful as a chemical heat storage material that ensures high reproducibility even in repeated reactions (having high repetition durability), and is capable of reversibly advancing heat storage and heat dissipation even in a relatively low temperature range. The present invention is a hydrate of a rare earth metal sulfate having characteristic peaks at specific diffraction angles (2θ) in an X-ray diffraction pattern, which is measured using a copper radioactive ray of λ=1.5418 Å passed through a monochromator.