R600a is the fourth generation refrigerant and the market space is expanding.

the fourth generation refrigerants include two categories: hydrofluoroolefins (hfos) refrigerants and hydrocarbon natural refrigerants (hcs). hcs refrigerants do not contain fluorine, and representative products are mainly r290, r600a, etc. r600a, i.e. isobutane, has a chemical formula of c4h10. it appears as a colorless gas under normal temperature and pressure. it is slightly soluble in water…