... ,ODORLESS HIGH PURITY EXCELLENT THERMAL AND CHEMICAL PROPERTIES R22 REFRIGERANT GAS 6.8KG, 13.6KG, 22.7KG PACKAGES AVAILABLE Physical ... (°C) -40.80Freezing point 101.3KPa (°C) -160.00Density 30°C(kg/m3) 1174.20Critical temperature (°C)96.20Critical pressure ... and clear ,Odor Odorless Application Chlorodifluoromethane (HCFC-22),a colorless gas at room temperature,is a colorless ,non - toxic,non-flammable ...