If memory serves Lithium bromide Solution was used as the heat
transfer medium with water vapor being the Refrigerant in the Servel Gas Air conditioners. They operated at high vacuum, and worked well until they got a leak, then the LiBr would corrode the unit. You couldn’t get them serviced since every one knows that you can’t take fire and make cold, you need a magician for that.
They did not mention which Br salt, Also wasn’t Chernoble a Liquid Sodium cooled unit
barbra ann
No, Chernobyl was a carbon moderated (solid blocks of pure carbon were piled up around the core and fuel to moderate the fast neutrons and encourage the production of plutonium from uranium. But, once the coolant was lost, the overheated uranium and fuel debris blew out the core's “pressure head” and destoyed the building's roof (which was NOT a containment dome!) but was nice and flat and covered with tar paper.
So the overheated Plutonium and uranium fuel and fuel debris by-products caught the tons of carbon moderator on fire, the building on fire, and the roof on fire. THAT fire lifted the radioactive atoms into the sky up high enough that they didn't settle down locally. In the end, winds aloft blew the radioactive poisons all over Europe and Siberia.
Detectable over here, but only by instruments. Nothing was surface contaminated too bad.