Diatomaceous earth: Difference between revisions

Its thermal properties enable it to be used as the barrier material in some fire-resistant safes.{{Citation needed|date=March 2013}} It is also used in evacuated powder insulation for use with cryogenics.<ref>Flynn, Thomas M. "Cryogenic Equipment and Cryogenic Systems Analysis." Cryogenic Engineering. Boca Raton etc.: CRC, 2005. Print.</ref> Diatomaceous earth powder is inserted into the vacuum space to aid in the effectiveness of vacuum insulation. It was used in the classical [[AGA cooker]]s as a thermal heat barrier.{{fact|date=July 2023}}