Refrigium

Refrigium is a melting refrigerant and its solid form is used in warm environments to absorb heat. It melts at 180 K and needs lots of heat before it fully melts. It is fully melted at a temperature around 200 K. Refrigium is an enviromentally safe and non-flammable and non-toxic material, making it very useful for cooling. It is cheaper than liquid nitrogen making it highly efficient.