R22 Chlorodifluoromethane

Shijie Chemical

Specifications

HS Code	836804
Chemical Formula	CHClF2
Molar Mass	86.47 g/mol
Boiling Point	-40.8 °C
Melting Point	-160 °C
Density	1.18 g/cm³ (liquid at 20 °C)
Vapor Pressure	1316 kPa at 21.1 °C
Critical Temperature	96.2 °C
Critical Pressure	4970 kPa
Flammability	Non - flammable
Ozone Depletion Potential Odp	0.055
Global Warming Potential Gwp	1700 (100 - year time horizon)

Packing & Storage

Packing	R22 Chlorodifluoromethane in 10 - kg cylinders for secure packaging.
Storage	R22 Chlorodifluoromethane should be stored in a well - ventilated, cool, and dry area. Keep it away from heat sources, ignition sources, and direct sunlight. Store in approved pressure - rated cylinders to contain its high - pressure vapor state. Ensure proper labeling and segregation from incompatible substances to prevent dangerous reactions. Regularly inspect storage containers for leaks.
Shipping	R22 Chlorodifluoromethane is shipped in specialized pressure - rated containers. Strict safety protocols are followed due to its refrigerant nature. Shipments adhere to international chemical transportation regulations to ensure safe transit.

Free Quote

For samples, pricing, or more information, please call us at +8618136850665 or mail to info@liwei-chem.com.

We will respond to you as soon as possible.

Tel: +8618136850665

Email: info@liwei-chem.com

General Information

Historical Development

R22, scientific name difluorochloromethane, has gradually emerged from the rise of chemical industry in the past. Since the beginning of chemical industry, the world has been seeking refrigerants for a long time. With its characteristics, such as good heat conduction and stable chemistry, R22 has gradually become the darling of the refrigeration field.
In the early years, the refrigeration industry did not thrive, and there were few refrigerant options. However, with the advance of science and technology, R22 has emerged in refrigeration equipment after repeated trials, and is widely used in household air conditioners, commercial refrigeration, etc. In the past, many refrigeration appliances relied on R22 for its use, delivering coolness in hot summer days, and preserving quality in storage.
However, times have changed, and scientific research has advanced. It has gradually become clear that although R22 has contributions to the past, it is dangerous to damage the atmospheric ozone layer. Therefore, the world seeks alternatives for environmental protection. Today, R22 is stepping out of the historical stage, but its achievements in the history of refrigeration are indelible.

Product Overview

"Overview of R22 Difluorochloromethane Products"
R22, that is, difluorochloromethane, is an important product in the chemical industry. Its properties are colorless gas with a slight ether smell. It is widely used in industry and is often used as a refrigerant. Because of its good thermodynamic properties, it can efficiently achieve heat transfer and temperature regulation.
However, it has a destructive effect on the atmospheric ozone layer, which has attracted much attention. With the rise of environmental protection concepts and the improvement of regulations, its use is gradually restricted. Although R22 has made significant contributions to refrigeration and other industries, it is urgent to seek its replacement for long-term ecological planning. Many researchers are also committed to this, striving to find alternative products with good performance and environmental protection, so as to ensure the balance between industrial development and ecological environment.

Physical & Chemical Properties

R22, that is, difluorochloromethane, its physical properties are crucial. This substance is gaseous at room temperature and pressure, colorless and slightly aromatic. Its boiling point is about -40.8 ° C, and its freezing point is -160 ° C, which makes it effective in gas-liquid conversion in refrigeration systems.
From a chemical point of view, R22 has certain stability, but when exposed to open flames or high temperatures, it will decompose and produce toxic gases. Its water solubility is very small, which can avoid a series of problems such as corrosion caused by moisture in refrigeration systems. At the same time, R22 has good solubility to a variety of organic substances, which is conducive to the circulation of lubricating oil and other substances in refrigeration systems. However, due to its damaging effect on the ozone layer, it is gradually being replaced under today's environmental protection concept.

Technical Specifications & Labeling

Nowadays, there is a substance name R22, that is, Chlorodifluoromethane, which is widely used in industry. Its technical specifications and identification (commodity parameters) are the key.
Guanfu R22, its purity must reach a very high standard, and the impurity content must be minimal, which is related to its performance. In terms of identification, its chemical name and molecular formula should be clearly indicated to clarify its essence. In the commodity parameters, the physical properties such as boiling point and freezing point should also be detailed, so that the user can understand it. On the package, there should be a prominent logo, indicating the danger level, so that the police can properly dispose of it. In this way, R22 can be guaranteed to be effective and safe during production and use.

Preparation Method

The preparation method of R22 (Chlorodifluoromethane is described above. The raw materials are usually methane, chlorine and hydrofluoric acid. The preparation process is as follows: First, methane and chlorine react under light or heating conditions to generate chloromethane, which is the first step. After that, chloromethane and hydrofluoric acid react under the action of a specific catalyst to obtain R22. The reaction steps are rigorous, and the reaction conditions of each step need to be precisely controlled. As for the chlorination mechanism, it is mainly a free radical reaction. Light or heating prompts chlorine to produce chlorine free radicals, which drives the reaction. During the preparation process, attention should be paid to the reaction temperature, pressure and raw material ratio to ensure product purity and yield. In this way, high-quality R22 products can be obtained.

Chemical Reactions & Modifications

In today's study of R22 (Chlorodifluoromethane), the modification of the reaction is very important. The activity of R22 often involves multiple reactions, such as the encounter of some objects, or the generation of strong reactions, which is challenging for its appearance and use.
To improve its properties, it is necessary to study the reaction. Many times, we know that the integration of the reaction parts, such as the degree and temperature, can change the reaction direction. Increase the degree, part of the reaction rate increases, and then it may cause side reactions to occur.
Add a specific catalyst, which can promote the reaction of R22 in the desired direction and improve the reaction rate. Modified, R22 may have better quality and lower corrosion, which is more effective in the field of multi-work. Therefore, in-depth study of its chemical and reverse modification is the key to promoting the development of R22 phase.

Synonyms & Product Names

R22 Chlorodifluoromethane, chemical substances are also. Its nicknames include Freon-22, difluorochloromethane, etc. Freon-22 is a common commercial name and is widely used. In the past, it was more common in air conditioning and refrigeration systems. Difluorochloromethane is the scientific name, which precisely indicates its chemical composition. This substance has unique properties and has made significant contributions to specific industrial processes and refrigeration fields. However, due to its potential harm to the ozone layer, its use is gradually regulated. Although there are different names, they all refer to the same chemical. With the increase in environmental awareness, related industries are looking for its replacement for the purpose of sustainable development.

Safety & Operational Standards

R22, that is, difluorochloromethane, is very important in our chemical research field.
For storage, it should be placed in a cool and ventilated warehouse. Keep away from fire and heat sources, and the storage temperature should not exceed 30 ° C. It should be stored separately from oxidants, acids, and edible chemicals, and should not be mixed. The storage area should be equipped with leakage emergency treatment equipment. This is because of its active chemical properties. In case of open flame and high heat, it can cause combustion and explosion, and react violently with oxidant contact.
When operating, it should be tightly sealed to provide good natural ventilation conditions. Operators must undergo special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter gas masks (half masks), chemical safety protective glasses, anti-static work clothes, and general operation protective gloves. Avoid high-concentration inhalation. Prevent gas leakage into the air of the workplace. Load and unload lightly during handling to prevent damage to cylinders and accessories.
If a leak unfortunately occurs, quickly evacuate the personnel in the leaking contaminated area to the upwind and isolate them, strictly restricting access. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and anti-static work clothes. Cut off the source of leakage as much as possible. Reasonable ventilation, accelerated diffusion. Spray-like water dilution and dissolution. Build a dike or dig a pit to contain a large amount of wastewater generated. If possible, send the leaking air to an open area with an exhaust fan or install a suitable nozzle to burn it. The leaking container should be properly disposed of, repaired, inspected and then used.
Only by strictly observing these safety and operating standards can we ensure the safety of R22 dichloromethane in production and use, avoid accidents, and protect people, the environment, and the orderly production.

Application Area

R22, or difluorochloromethane, is widely used in the field of refrigeration. In the past, many household and commercial refrigeration equipment relied on it as a refrigerant. Due to its suitable boiling point and condensation pressure, the refrigeration efficiency is quite good.
In the air conditioning system, R22 can efficiently transfer heat, so that the indoor temperature can be lowered, creating a cool environment. In refrigeration and freezing equipment, it can also maintain low temperatures to keep ingredients and goods fresh.
As time goes by, it is gradually known that R22 is at risk of damaging the ozone layer and has a high potential for greenhouse effect. Therefore, countries gradually set regulations to reduce its use and replace it with more environmentally friendly refrigerants. Although R22 has made remarkable achievements in the past, in view of the environmental protection plan, its application field is gradually declining, and it will eventually be eliminated by the times. This is the inevitable progress of science and technology and environmental protection.

Research & Development

Today there is a chemical substance called R22, scientific name Chlorodifluoromethane. Our generation is a researcher to explore the way of its research and progress.
R22 was commonly used in refrigeration in the past, and its efficiency was quite good, which contributed to the refrigeration industry. However, times change, and the research is in-depth, knowing that it is harmful to the atmospheric ozone layer and damages the safety of the environment.
Scientists then dedicated themselves to finding alternative methods. Or from material innovation, or from process improvement. Although there are many difficulties, they are unswerving. We hope to replace R22 with new technologies and new materials, which not only guarantees the ability of refrigeration, but also protects the beauty of the environment. The road of scientific research is long, and only by moving forward with perseverance can we make a new frontier for the follow-up research and progress of R22 and contribute to the sustainable development of the world.

Toxicity Research

The chemical industry is related to people's livelihood, but the study of poisons in it should not be careless. Today, R22 Chlorodifluoromethane this substance as a theory to study its toxicity in detail.
R22 is used in various fields of refrigeration. At the beginning, people because of its good refrigeration effect, did not think deeply about its poison. However, after a long time of research, it gradually became clear its harm. If its gas enters the body, or hurts the breathing system, light coughs, chest tightness, severe shortness of breath, suffocation. And this substance in the atmosphere can break the ozone layer and indirectly cause harm to life.
When we study the toxicity of this substance, we should think of all measures. When producing and using, we must strictly set up protective regulations to avoid people from touching its poison. It is also necessary to find alternative methods and harmless agents to ensure the health of the world and ecological tranquility. In this way, it is not the responsibility of the researcher, and it is safe to protect the birth of the public.

Future Prospects

Now R22 Chlorodifluoromethane this thing, in the field of refrigeration, has made great achievements in the past. However, times have changed, because of its risk of damage to the atmospheric ozone layer, according to today's regulations, it is gradually abandoned.
Although it seems to be facing difficulties in front of it, it is not easy to say that it will not do anything in the future. The way of scientific research has always been refined. Or elsewhere, new uses can be found. Such as the special process of industry, or some specific chemical reactions, its characteristics may still be valuable.
Furthermore, researchers are determined to study, hoping to find a proper way to reduce its harm and restore it to life. On the road to the future, science and technology are changing, R22 Chlorodifluoromethane or can get new opportunities in the change, and develop different prospects.

Frequently Asked Questions

What is the main use of R22 Chlorodifluoromethane?

R22 is difluorochloromethane (Chlorodifluoromethane), which has a wide range of uses. In the past, it was often used as a refrigerant in air conditioning and refrigeration systems. Because of its suitable thermodynamic properties, it can efficiently realize heat transfer. It is widely used in refrigeration equipment such as air conditioners, refrigerators, and chillers. It creates a cool and comfortable environment for the world, and also ensures proper refrigeration and freezing of food and other items.
Furthermore, in the field of foaming agents, R22 has also played an important role. In the manufacture of materials such as polyurethane foam, it can be used as a foaming agent to help form a uniform and fine cell structure, so that the material has good insulation and cushioning properties. It is commonly found in building insulation materials and some packaging materials.
However, with the deepening of environmental awareness, the world has discovered that R22 can cause damage to the ozone layer and has a high greenhouse effect potential. Based on this, the world has gradually restricted and reduced its use, replacing it with more environmentally friendly alternatives. However, for a long time in the past, R22 has played a key role in many industries such as refrigeration and material manufacturing due to its good refrigeration and foaming properties.

What are the effects of R22 Chlorodifluoromethane on the environment?

R22 is known as Chlorodifluoromethane, which has a profound impact on the environment in many ways.
It bears the brunt of the damage to the ozone layer. Because of its chlorine atoms, it escapes into the atmosphere and rises to the stratosphere. After being irradiated by ultraviolet rays, chlorine atoms will dissociate from R22. This chlorine atom is called an "ozone layer killer". It reacts with ozone in a chain reaction. One chlorine atom can destroy about 100,000 ozone molecules, resulting in a hole in the ozone layer. The ozone layer, like the earth's "umbrella company", absorbs ultraviolet rays from the sun, and its destruction will cause excess ultraviolet rays to reach the earth's surface and endanger life. Long-term exposure of humans increases the risk of skin cancer, cataracts and other diseases. For animals and plants, the disturbance of plant photosynthesis results in a decrease in yield and quality, and the destruction of animal immune systems, which affects ecological balance.
Furthermore, R22 is a powerful greenhouse gas with a high global warming potential (GWP). In the atmosphere, it can absorb and re-radiate infrared rays, causing heat on the earth's surface to be difficult to dissipate and exacerbating the greenhouse effect. The greenhouse effect has caused a series of environmental problems, such as the melting of glaciers and the rise of sea levels caused by global warming, which threatens coastal areas and islands. Climate extremes, such as heavy rains, droughts, and hurricanes, affect the stability of ecosystems and human society and economy.
In view of the serious environmental hazards of R22, the international community has taken action to limit its production and use. Many countries and regions follow the Montreal Protocol and its amendments, phasing out R22 and replacing it with environmentally friendly refrigerants with low ozone depletion potential (ODP) and low global warming potential (GWP), in order to slow down ozone layer destruction and greenhouse gas emissions and protect the earth's ecological environment.

What are the physical properties of R22 Chlorodifluoromethane?

Chlorodifluoromethane, or R22, is a common halogenated hydrocarbon refrigerant. Its physical properties are unique, so let me explain in detail.
Looking at its properties, under normal temperature and pressure, R22 is a colorless gas, but after being pressurized or cooled, it is easy to liquefy and shows a transparent flowing liquid state. Smell it, it has a slightly aromatic taste, but its taste is light and elegant, and it is difficult for ordinary people to detect it.
When it comes to the boiling point, the boiling point of R22 is quite low, about -40.8 ° C. This property makes it easy to quickly change from liquid to gaseous state in normal temperature environment, and the gasification process absorbs a lot of heat. This is the key principle of its application in refrigeration systems. Related to it, its freezing point is very low, about -160 ° C, and it can still maintain a good physical state under extremely cold conditions, ensuring the stable operation of refrigeration equipment in low temperature environments.
When it comes to density, the density of R22 in the gaseous state is greater than that of air, about 3.07kg/m ³. The density in the liquid state is about 1.213kg/L, which is slightly heavier than water. This density characteristic affects its flow and distribution in the refrigeration system, and it needs to be taken into account when designing and operating refrigeration equipment.
In terms of solubility, R22 is slightly soluble in water, but it can be miscible with many organic solvents, such as ethers and alcohols. In the refrigeration system, this solubility affects its miscibility with lubricating oil, which is related to compressor lubrication and system operation reliability. Rational selection of lubricating oil ensures good compatibility with R22 to ensure efficient and stable operation of the refrigeration system.

R22 Chlorodifluoromethane What are the precautions during use

R22 is difluorochloromethane (Chlorodifluoromethane), which is a commonly used refrigerant in the past. When using it, there are several things to be careful about:
The first priority is safety, and R22 has certain flammability and toxicity. If it leaks a lot in a closed space, or causes asphyxiation, and even has the risk of explosion in case of open fire. Therefore, the place used should ensure smooth ventilation, and open flames and static electricity are strictly prohibited. Protective equipment, such as gas masks, gloves, etc. should be worn during operation to prevent contact with the human body.

Second and environmentally friendly, R22 contains chlorine elements, which will cause damage to the ozone layer, persist in the atmosphere for a long time and rise to the stratosphere, decompose chlorine atoms under ultraviolet radiation, and catalyze ozone decomposition. In accordance with environmental regulations, use and emissions are strictly controlled. When equipment is repaired and replaced, it must be properly recycled and disposed of, and it must not be released into the atmosphere wantonly.
Furthermore, when it comes to equipment, the working pressure and temperature range of R22 are specific, and the refrigeration equipment used must be adapted. When selecting compressors, condensers, evaporators and other components, it must be accurately matched according to the characteristics of R22, otherwise it will affect the refrigeration efficiency and shorten the life of the equipment. During the operation of the equipment, closely monitor the pressure, temperature and other parameters to ensure that it is in the normal range.
Repeated storage, R22 must be stored in a cool, dry and well-ventilated place, away from heat and fire sources. The storage container should be pressure-resistant and sealed, and regularly check for leakage. Handle with care to prevent leakage caused by damage to the
In short, the use of R22 must be cautious, taking into account all aspects of safety, environmental protection, equipment and storage, so as to ensure the smooth use of the process, safety and compliance.

What are the alternatives to R22 Chlorodifluoromethane?

R22, or Chlorodifluoromethane, needs to be replaced because of its damaging effect on the ozone layer. The following are various alternatives:
1. ** Hydrofluorocarbons (HFCs) **:
- ** R410A **: This is a widely used alternative to air conditioning systems. Its refrigeration efficiency is quite high, and its heat transfer performance is very good. It can make air conditioning equipment more compact and efficient. In addition, it does not contain chlorine atoms, which is not dangerous to the ozone layer. However, its greenhouse effect potential (GWP) is relatively high, and in the long run, it also faces the situation of further replacement.
- ** R134a **: Commonly used in automotive air conditioners and some refrigeration equipment. It has stable chemical properties, suitable thermophysical properties, and good cooling effect. It also has no damage to the ozone layer due to the absence of chlorine atoms. However, its GWP value is also high, which is not an ideal alternative for long-term use.
2. ** Natural refrigerant **:
- ** Carbon dioxide (R744) **: It has many advantages, its ozone layer destruction potential (ODP) is zero, and its GWP value is only 1, which is extremely environmentally friendly. And it has a wide range of sources and low cost. However, its working pressure is quite high, and it requires strict pressure resistance performance of equipment and systems, which increases the cost of equipment.
- ** Propane (R290) **: It is a hydrocarbon, with zero ODP, extremely low GWP value, and excellent environmental protection performance. Its refrigeration performance is good, similar to R22. However, it is flammable, and special attention needs to be paid to the safety design of the system when using it to prevent the risk of fire or explosion caused by leakage.
3. ** New mixed refrigerant **: Some enterprises and scientific research institutions are committed to developing new mixed refrigerants, aiming to integrate the advantages of various refrigerants and overcome the shortcomings of a single refrigerant. These new mixed refrigerants are continuously optimized in terms of environmental performance, refrigeration efficiency, safety, etc., and are expected to become more ideal replacements for R22. However, most of these refrigerants are in the research and development or experimental stage and have not yet been widely used.