Propane price Refrigerant R290, or propane, is a natural hydrocarbon refrigerant that can be obtained directly from liquefied gas. Compared with Freon, a synthetic refrigerant, natural R290 does not contain chlorine atoms in its molecules, so its ODP value is zero, and it does not have a damaging effect on the ozone layer. In addition, compared with HFC substances that also have no damage to the ozone layer, the GWP value of R290 is close to 0, and has no effect on the greenhouse effect. 聽 R-290 refrigerant (refrigerant grade propane) alias R290, Chinese name 涓欑兎, English name propane, chemical formula C3H8. R290 is a hydrocarbon refrigerant - it does not damage the ozone layer and has a very small greenhouse effect. It is an environmentally friendly refrigerant today. From an environmental point of view, it is very important for the initial installation of R290 refrigerant on new refrigeration equipment and after-sales maintenance. There are no restrictions on the use of the course. 聽 R290 (propane) is a new environmentally friendly refrigerant, mainly used in central air conditioners, heat pump air conditioners, household air conditioners and other small refrigeration equipment. However, due to the explosive characteristics of R290, the amount of injection is limited, and the safety level is A3. 聽 Main purpose of R-290 It is mainly used to replace R22 and R502 refrigerants in low-temperature refrigeration equipment; because R290 is flammable, it is usually only used in low-temperature refrigeration equipment with a small liquid charge, or as a component of low-temperature mixed refrigerants; R290 and Compatible with conventional lubricants. R-290 storage and transportation R-290 refrigerant steel cylinder is a pressurized container, and it is flammable and explosive. When storing, it should be kept away from fire, heat source, and direct sunlight. It is usually stored in a cool, dry and ventilated warehouse; it should be lightly loaded and unloaded when handling. , to prevent damage to accessories such as cylinders and valves. 聽 R290 hazards: Brief exposure to 1% propane did not cause symptoms; Exposure to concentrations below 10% can only cause mild dizziness; Anesthesia and loss of consciousness may occur when exposed to high concentrations; May cause asphyxiation on exposure to very high concentrations. In addition, R290 is a flammable gas, and there is a danger of combustion and explosion when it encounters an open flame from a heat source under certain conditions. 聽 R290 refrigerant has the following advantages: 1. R290 refrigerant has high thermal conductivity, greater latent heat of evaporation, small molecular weight, good fluidity, lower delivery pressure, and less load on the compressor, which can prolong the service life of the compressor. Use R290 refrigerant to save energy by about 30%. 2. Traditional refrigerants such as R22 and R410A are not suitable for use in hot tropical regions, while R290 refrigerant has unique adaptability to hot climates. 聽 Physical properties: Relative Molecular Weight44.097 Boiling Point 鈩?/strong>-42.07 Critical Temperature鈩?/strong>96.67 Critical Pressure Mpa4.25 Liquid specific heat, 25鈩僛KJ/(kg路鈩?]1.64 ODP0 GWP0.0011 聽 Quality Index(GB/T 18826-2002): Purity %鈮?9 Moisture Ppm鈮?0 Acidity Ppm鈮? Evaporation residue Ppm鈮?00 Exteriorcolorless, not cloudy Odorno smellPropane price website:http://www.julychem.com/propane/