R22 has good stability to metal, no corrosion. However, when R22 contains water, copper plating is easy to occur. R22 has a certain erosive sealing material for natural rubber and plastic organic materials. Chloroethanol rubber can be used.
Chimic denumire: diclormetan
CAS no. : 75-45-6
Molecular formula: CHClF2
Greutate moleculară: 86.47
Punct de fierbere : -40.8 degree
Relative density (30 degree ), liquid, 1.174 g/cm3
Topire punct: -160.00 degree
Preț critic temperatură: 96,2 grade
critical pressure is 4.99mpa
Ozon strat distrugere potențial valoare (ODP) 0.055
Global încălzire coeficient (GWP) 1700
Specific căldură de lichid 30 grad , [KJ/(Kg· grad )] 0.31
Saturat lichid densitate 30 grad , (g/cm3) 1.174
Izobar abur specific căldură (Cp), 30 grad și 101.3kPa[KJ/(Kg· degree )] 0.16
Molecular critic densitate, g/cm3 0.526
Evaporare potențial la punct de fierbere , KJ/Kg 233.5
scopul principal
R - 22 as the most most widely used today in the low temperature refrigerants, mainly used in household air conditioner, commercial air conditioning, central air conditioning, mobile air conditioning, heat pump water heater, dezumidificator, congelat type dryer, cold storage, food refrigeration equipment, refrigeration equipment, Marine industrial refrigeration, commercial refrigeration, refrigeration, refrigerat condensing units, supermarket display dulapuri și altele refrigerare echipamente. Difluoroclormetan poate fi utilizat ca a materie primă pentru producția de politetrafluoretilenă rășini și ca an intermediar de incendiu stingere agent 1121, și precum ca a fizic spumare agent pentru polimeri (materiale plastice).
Folosit pentru reciproca compresoare, ca agent frigorific pentru industrial, comercial si casnic aer conditionat sisteme; Can fi de asemenea utilizat ca insecticid si spray spray aerosol spray agent, can also be used to produce fire extinguishing agent; It is the basic raw material for the production of various fluorinated polymer compounds.
R22 is an HCFC refrigerant that be etapizat out by 2030 under the the Montreal Protocol.
Main environmental alternatives: R404A,R410A, R290, R23, R407C, R411A, R417A, R1270.
Principalii producatori% 3a interne producatori sunt quzhou Juhua Group % 2c Shandong Dongyue Group% 2c Zhejiang Meilan Chimice % 2c sanaifu % 2c etc.
Main international brands: Dupont, Honeywell, Arkema and so on. However, as developed countries have already eliminated R22 in advance and are not allowed to produce this product in their own countries, the so-called imported R22 sold in the market are actually domestic OEM production.
R22 este a member of the Freon family of hydrochlorofluorocarbons.
Freon definition, freon is saturated hydrocarbon (hydrocarbon) halogen derivatives of the general name, is this century 30's with the development of the chemical industry and a class of refrigerant, its emergence to solve the refrigeration air conditioning sector for refrigerant. From the definition of freon can be seen, now people say that non-freon R134a, R410A and R407C are actually freon.
Freon can destroy the ozone layer because of the presence of chlorine element (Cl) in refrigerants, and with the increase of the number of clor atoms, the ozone layer damage ability increased, with the increase of hydrogen element content, ozone layer damage ability decreased; The greenhouse effect is mainly caused by the large amount of greenhouse gases, such as CO2, generated in the process of slow oxidation and descompunere de agent frigorific.
