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Old Oct 20th 2016, 03:39 PM   #1
ukbobgolding
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Join Date: Oct 2016
Location: cornwall uk
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salt phase change materials

hello new here . my question relates to using sodium sulphate as a PCM i am using the decahydrate form at the moment but the anhydous form is a lot cheaper in bulk. is there a way to convert it to the decahydrate form easily? one report says just leave it in the damp air,but can i just add water. the formula i am using is from an old patent by maria telkes numbered 3986969 it was granted in 1976 so is well out of date. if someone could look though the method i would be most grateful it doesnt give a temperature so i assume it is at ambiant.
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