... Weight95.39Normal boiling Point, °C-87.4Critical Temperature, °C14Critical Pressure, Mpa3.93Specific Heat of Liquid, 30°C, ... .608Safety data: Usage:The widespread use of ultra low temperature refrigerant, mainly used in environmental test box/equipment ... , freeze-drying machine/freeze dryer, ultra low temperature refrigerator, biochemical test box and cryogenic equipmennt, ...