What liquid fuels are not volatile?

Dimethyl ether is a colorless and odorless gas at room temperature, and is mainly used as a spray and cooling medium. When pressurized, it becomes a liquid, similar to LPG, and can be used as fuel. The physicochemical properties are as follows:

Chemical Molecular Formula ch3och3 Boiling point ( 0 2C ) Liquid density (g cm320 0 2C) Specific gravity of gas (specific to air) Latent heat of gas ( kcal kg ) Saturation pressure ( Maximum combustion rate (cm s) 50 Ignition energy (10-6J) 45 Ignition temperature ( 0 2C ) 350 **Range (%) Cetane number 55-60 Low calorific value (kcal nm3) 14200 Low calorific value (kcal nm3) 6903 Dimethyl ether is a colorless gas when it is above -25, The chemical properties are stable, and its performance is close to that of propane and butane, which constitute the main components of LPG, so it can be mixed with or used as liquid fuel on behalf of LPG. As an automobile fuel, dimethyl ether has a slightly higher cetane number than diesel and much higher than methanol, coupled with low sulfur content, so it is suitable for diesel fuel to be used as a clean fuel for automobiles.

Liquid fuels should be easily volatile.

If it is a simple hydrocarbon compound, it will produce CO and carbon dust, which is harmful to the human body. If the fuel also contains impurities such as nitrogen and sulfur, harmful gases such as SO2 and NO will be generated. In addition, incomplete combustion may also produce some more complex substances, which may be harmful to the human body.

Refers to a combustible substance. According to the state of the substance, it can be divided into solid fuels, such as: coal, oil shale and coke, the product of coal processing, etc.; Liquid fuels, such as petroleum and its processed products, gasoline, diesel, etc.; Gaseous fuels such as coal gas, natural gas, etc.

In addition, there is nuclear fuel, which emits enormous heat from nuclear reactions. Fuel plays an important and indispensable role in industrial and agricultural production, transportation and people's lives.

Fuels are widely used in industrial and agricultural production and people's lives, and can release energy through chemical reactions. There are many types of fuels, the most common being coal, coke, natural gas, and biogas.

With the development of science and technology, human beings are developing and using fuels more rationally, and trying to pursue the concept of environmental protection. Fuel is also a part of physics that needs to be studied, and its formula for heat absorption and release is q=q m.

Ink: It is a colorant with complex composition, low ignition point, flammable and fire hazard. When burning, it mainly produces organic solvents such as alcohols, esters, and ketones, and produces toxic gases when decomposed.

Foam: There are many types of organic substances, including phenol, cresol, benzene, methanol, ammonia, formaldehyde, urea, acetylene. The combustion characteristics of various foams vary greatly, depending on the shape and chemical composition of the product.

Desiccant: The gas produced has carbon dioxide, and if the desiccant itself is toxic, then there will also be toxic gas after the reaction. <

1. Ink: It is a colorant with complex composition, low ignition point, flammable and fire hazard. When burning, it mainly produces organic solvents such as alcohols, esters, and ketones, and produces toxic gases when decomposed.

2. Foam: There are many kinds of organic substances, including phenol, cresol, benzene, methanol, amonia, formaldehyde, urea, acetylene. The combustion characteristics of various foams vary greatly, depending on the shape and chemical composition of the product.

3. Desiccant: The gas produced has carbon dioxide, and if the desiccant itself is toxic, it will also be toxic after the reaction.

4. Coke: combustion will produce carbon dioxide, and the products of incomplete combustion will produce carbon monoxide.

5. Gasoline: Pure gasoline is carbon oxide combustion to produce carbon dioxide, and water is not fully burned to produce carbon monoxide. Carbon monoxide is the most well-known toxic substance, carbon monoxide is very easy to combine with hemoglobin to form carboxyhemoglobin, so that hemoglobin loses its oxygen-carrying ability and effect.

1. The hazard level of oil products is divided according to the flash point, which is an item that indicates the evaporation tendency and safety nature of petroleum products. Those with a flash point below 45 are called flammables; More than 45 are combustible. From the flash point, the composition of the oil can be judged, and the risk of fire in the oil can be identified, and the higher the flash point, the safer.

2. Classification of hazard characteristics According to the provisions of the national GB6944-2012 "Dangerous Goods and Product Name Number", it is divided into 9 categories according to the danger or the most important danger of dangerous goods: Class L: ** product; Category 2:

Gas; Class 3: flammable liquids; Category 4: flammable solids, substances that are prone to spontaneous combustion, and substances that emit flammable gases when exposed to water; Class 5:

oxidizing agents and organic peroxides; Class 6: Toxic and infectious substances; Class 7: Radioactive material.

Class 8: Corrosive substances. Class 9:

Miscellaneous hazardous substances and articles, including substances hazardous to the environment. Among them, the first 5 categories are all explosive dangerous goods, and many substances in the last 4 categories also have explosive hazards. 3. The performance of lubricating oil is first of all, it does not have flammable characteristics; secondly, it does not have strong corrosiveness; Clause.

3. It is not volatile; Clause.

Fourth, it does not have the ability to be difficult to pack; Clause.

Fifth, it does not have the ability to store and transport. Therefore, lubricating oil does not belong to dangerous goods, and it can be exempted from the regulations on the transportation and storage of dangerous goods. However, lubricants are also chemical products, and they must also be stored and transported safely to avoid environmental pollution.

4. The importance of flash point Flash point has important significance in fire fighting work, flash point is an important parameter to characterize the fire hazard of flammable and combustible liquids: flash point is an important basis for the classification of fire hazard in the production and storage of combustible liquids, and is the basis for the classification of Class A, B and C hazardous liquids. According to the design and application of fire protection engineering, combustible liquids are divided into three types according to the different flash points.

i.e.: Class A liquid: liquid with a flash point of less than 28.

Such as **, gasoline, etc.) Class B liquid: liquids with a flash point greater than or equal to 28 but less than 60. (e.g. jet fuel, kerosene for lamps) Class C liquids:

Liquids with a flash point greater than 60. (Heavy oil, diesel, lubricating oil, etc.) [Instructions for the use of lubricating oil] Oil storage: 1

Do not place it upright in the open air to prevent the intrusion and pollution of water and debris. 2.Indoor storage can be placed vertically, with the barrel side facing up, for easy extraction.

3.Tighten the cap to keep the drum sealed. 4.

Keep the barrel surface clean and clearly marked. 5.Keep the floor clean so that oil leaks can be detected in time.

6.Do a good job of warehousing registration, first-come, first-served. 7.

Frequently pumped oil is placed on the drum rack and the exile is controlled by a switch. 8.The new oil is placed separately from the waste oil, and the container filled with the waste oil cannot be filled with new oil to prevent pollution.

Some fuels are quite different in volatility, such as ethanol and diesel.

Volatile fuels are liquid fuels that can become gaseous volatilized without a trace at room temperature.

Gasoline, diesel, alcohol, banana water are all volatile fuels.

Peanut oil and other edible oils are not volatile, to be able to volatilize the liquefied gas, that is, the one-time mobile phone charge, which is liquid in the mobile phone, and the mobile phone is gaseous, which belongs to combustible gas.

It is easy to store the gaseous state by turning the gaseous state into a liquid state through high pressure, and only the cylinder can withstand the huge pressure of oxygen in the hospital cylinder.

Liquid fuels should be easily volatile.

All known flammable liquids are volatile. b Khan. There's no burning and non-volatile liquid you want.

Because you have to understand. In fact, it is not the liquid itself that burns the flammable liquid, but the part of the liquid that volatilizes.

When transporting flammable liquids such as oil, gasoline, liquefied natural gas, etc. People generally have to transport it full, transport it at low temperatures, or remove the air in it to avoid the danger caused by volatilization. Alcohol can be burned under normal circumstances, but if it is boiling, it may ignite** or deflagrate.

So the volatility of liquid fuels is related to combustion.

You have to do a 10-point test of the real liquid.

Dangerous. I hope to do it under the premise that there are safety measures to ensure it.

The content of the experiment can meet your needs.

Paraffin. Or cooking oil.

It is not easy to burn at room temperature.

But you heat them up to a certain temperature about their boiling point. Then give a fire source and they'll be able to burn.

Note: Edible oil is not as flammable as alcohol. Generally not**.

But also be safe. I can do it indoors without judging the skin. Do not allow heated oil to meet water during the experiment.