Endothermic reaction apparatus for removing excess heat in a datacenter

A datacenter system comprising:

• a secondary cooling system for providing standby emergency cooling for a datacenter cooled by a primary CRAC system, said secondary cooling system being inactive during normal operation of said primary CRAC system and being automatically activated responsive to detecting at least one condition indicating operational failure of said primary CRAC system, wherein said primary CRAC system operates to cool said datacenter by vapor compression of a coolant without undergoing an endothermic reaction and said secondary cooling system operates independently of said primary CRAC system, said secondary cooling system comprising:
• a holding container;
• wherein the holding container is composed of a thermally conductive material selected from a group consisting of copper and aluminum;
• wherein the holding container is configured to circulate a cooling solution, the cooling solution being composed of a combination of at least two substances, a first liquid substance and a second liquid substance, that create an endothermic reaction when mixed;
• and
• a separation unit having a dialyzing membrane coupled to the holding container;
• wherein the separation unit is configured to separate the cooling solution into the first liquid substance and the second liquid substance;
• and
• wherein the separation unit receives the cooling solution from the holding container, separates the cooling solution into the first liquid substance and the second liquid substance by dialysis through said dialyzing membrane, and circulates the first substance and the second substance to the holding container.