142B
Packing: Recycled steel cylinder—400L, 800L, 1000L ISO-TAN
Physical properties
Molecular formula | CH3CCLF2 | ||
Molecular weight | 100.49 | ||
Boiling point (℃) | -9 | ||
Freezing point (℃) | -131 | ||
Liquid density 30℃(kg/m3) | 1096.9 | ||
Critical temperature (℃) | 137.1 | ||
Critical pressure (MPa) | 4.12 | ||
ODPODP | 0.04 | ||
GWPGWP | 2400 | ||
ASHRAE safety class | A2 (toxic and inflammable) |
Quality standard
Purity | ≥99.8% | ||
Moisture | ≤0.001% | ||
Acidity | - | ||
Residue on evaporation | ≤0.01% | ||
Chloride (Cl-) test | - | ||
Appearance | Colorless and clear | ||
Odor | No odor |
Application
R-42b is a commonly used high-temperature refrigerant, (R142b) is mainly used in refrigeration and air-conditioning systems (high-temperature air-conditioning), heat pumps, important components of various mixed refrigerants, and polymer (plastic) foaming in high temperature environments , thermostatic control switch and intermediate of aviation propellant, and also used as chemical raw material. HCFC-142b is mainly used for refrigeration systems in high temperature environments, thermostatic control switches and intermediates of aviation propellants, and also used as chemical raw materials.
Storage and transportation
R-124 refrigerant cylinders are pressurized containers, which should be kept away from fire, heat sources, and direct sunlight during storage. They are usually stored in a cool, dry and ventilated warehouse; they should be lightly loaded and unloaded during handling to prevent cylinders and valves, etc. Accessories are broken.
Refrigerator oil
Refrigeration oils usually used with R-142b refrigerant are: Suniso 4GS, 5GS, Capella WF68, LUNARIA KA56, etc.; which refrigeration oil is finally used in different equipment and different application places should be in accordance with refrigeration compressors and refrigeration (air conditioners) According to the recommendations of the equipment manufacturer, or according to the specific conditions of the refrigeration compressor and refrigeration equipment, use the refrigerator oil with the same design and the requirements of the technician, that is, choose the equivalent refrigerator oil.
Packing
Packing: Recycled steel cylinder—400L, 800L, 1000L
ISO-TAN
Elimination Schedule:
R-142b belongs to the HCFC class of substances (the second batch of restricted ODS substances Class II Ozone-depleting Substances) - it is harmful to the ozone layer and has a greenhouse effect, so in developed countries (EU, Japan, USA), it has been stopped. Initial installation on new air conditioners and refrigeration equipment; China currently has no restrictions on the production, initial installation, and refilling of R142b refrigerant.
Protective measures
Respiratory system protection: Generally, no special protection is required, and special protection is generally not required when exposed to high concentrations, but it is recommended to wear a self-priming filter gas mask (half mask) under special circumstances.
Eye Protection: When necessary, wear chemical safety goggles.
Body Protection: Wear anti-static overalls.
Hand Protection: Wear general work protective gloves.
Others: Smoking is strictly prohibited at the work site. Access to tanks, confined spaces or other high-concentration areas must be supervised.
Emergency release treatment
Quickly evacuate personnel from the leaked contaminated area to the upper wind, and immediately isolate them, and strictly restrict access. Cut off the source of ignition. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and fire protection clothing. Cut off sources of leaks as much as possible. Reasonable ventilation, accelerate the diffusion. The leaking container should be properly handled, repaired and inspected before use.
First-aid
Skin Contact: Get medical attention if frostbite occurs
Inhalation: Quickly leave the scene to fresh air. Keep the airway open. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. seek medical attention.
Fire fighting methods
Cut off the air supply. If the gas source cannot be cut off immediately, it is not allowed to extinguish the burning gas. Cool containers with water spray and move containers from fire to an open area if possible. Extinguishing media: water mist, foam, dry powder, carbon dioxide
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