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A comment on Zeolite retains heat indefinitely, absorbs 4x more heat than water. Parent comment

Re:Zeolite retains heat indefinitely, absorbs 4x more heat t... by limmeau on Wednesday June 06, 2012 @03:35PM (#4075722)
I think there's a saturated solution of sodium acetate inside. The metal clickie causes the solution to crystallize, which happens to happen exothermically.

(IANAchemist)

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Re:Zeolite retains heat indefinitely, absorbs 4x more heat t... by vlisivka on Thursday June 07, 2012 @05:21AM (#4078178)
Can I use sodium acetate to heat my energy passive home (which I will build soon) by heating it at day in Trombe wall and discharging it at night?
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Re:Zeolite retains heat indefinitely, absorbs 4x more heat t... by xutopia on Thursday June 07, 2012 @09:37AM (#4078935)
It's most likely unwieldy. Sometimes you can cause the exothermic effect to occur without you wanting it by a vibration or shock.
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