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What happens when carbon dioxide is compressed to atmospheric pressure?
When carbon dioxide is compressed to atmospheric pressure, it becomes a supercritical fluid with properties of both gases and liquids. It is often used in industrial processes like extraction and as a solvent due to its unique properties.
What is the symbol for nitrogen oxides?
Generally used: NOx
How do you calculate total nitrogen?
To calculate total nitrogen, you typically sum up the concentrations of different forms of nitrogen present in a sample. This can include organic nitrogen, ammonia nitrogen, nitrite nitrogen, and nitrate nitrogen. Analytical techniques such as Kjeldahl digestion or combustion methods are commonly used to determine total nitrogen content in a sample.
What is the purpose of soda lime in the detection of nitrogen in nitrogen containing compounds?
Soda lime is used to detect the presence of nitrogen in nitrogen-containing compounds through a process called the Kjeldahl method. It is used to absorb the evolved ammonia gas during the digestion of the sample, which is then released by heating the soda lime and can be quantitatively determined. This method helps in determining the nitrogen content in organic compounds.
What is nitrogen used for in industry?
Nitrogen is used in industry for various purposes such as blanketing to prevent oxidation, purging pipelines and tanks, cryogenic applications, and as an inert gas for packaging and preserving food. It is also used in the production of chemicals and pharmaceuticals.
Is there any application of supercritical fluid extraction in refinery?
Supercritical fluid extraction is now used in laboratories.
What are the unique properties and applications of supercritical nitrogen in various industries?
Supercritical nitrogen is a state where nitrogen is at high pressure and temperature, exhibiting unique properties like high density and solvating power. It is used in industries for processes like extraction, purification, and as a solvent due to its ability to dissolve a wide range of compounds.
How is the soloubility of gases in liquied used in industry?
The solubility of gases in liquids is used in various industries for processes like carbonation in the beverage industry, oxygenation in water treatment plants, and in extraction techniques such as supercritical fluid extraction. This property allows for the efficient transfer of gases into liquids for specific applications.
What is the supercritical state?
(I suppose that you mean supercritical state of fluid.)Supercritical state of liquid-gas is a state that liquid state and gas state stop to exist at particular temperature and pressure.There is only just fluid state which has both liquid and gas property and if you change the pressure or temperature just a bit, it will change to one of the state.How to achieve supercritical state ?The supercritical state is done at HIGH TEMPERATURE and PRESSURE.For example, the famous CO2 fluid (used to separate caffeine from the coffee bean) is acquired at 304.1 Kelvin and 72.8 atm.
What is CO2 use for?
Carbon dioxide is used to carbonate beverages, and makes breads and cakes rise. Some fire extinguishers blanket the fire with heavy carbon dioxide to prevent the lighter oxygen from getting to the fuel. It is also used in supercritical fluid extraction to decaffeinate coffee.
For extraction of lipids from seaweeds which is the best method?
One common method for extracting lipids from seaweeds is the Bligh and Dyer method, which uses a mixture of chloroform, methanol, and water. This method is effective in extracting a wide range of lipids from biological samples. Alternatively, supercritical fluid extraction (SFE) can also be used for lipid extraction from seaweeds, offering advantages such as reduced solvent use and faster extraction times.
What is extraction method antioxidant from soybean?
The extraction of antioxidants from soybeans typically involves methods such as solvent extraction, where organic solvents like ethanol or methanol are used to dissolve and isolate the antioxidant compounds. Another common method is supercritical fluid extraction (SFE), particularly using carbon dioxide, which allows for the extraction of antioxidants without residual solvents. Additionally, enzymatic extraction can enhance the yield of antioxidants by breaking down cell walls. These methods aim to efficiently obtain bioactive compounds like isoflavones and phenolics, which are known for their antioxidant properties.
A solvant is what?
A solvent is a substance that dissolves other substances to form a solution. It is typically a liquid, but can also be a gas or a solid in some cases. Solvents are commonly used in various processes such as cleaning, chemical reactions, and extraction.
What happens when carbon dioxide is compressed to atmospheric pressure?
When carbon dioxide is compressed to atmospheric pressure, it becomes a supercritical fluid with properties of both gases and liquids. It is often used in industrial processes like extraction and as a solvent due to its unique properties.
Can gas serve as a solvent?
Yes, gas can serve as a solvent, although it is less common than liquids. Some gases can dissolve other gases or solids and form homogenous mixtures. An example of a gas solvent is carbon dioxide in supercritical fluid extraction processes.
Can a gas act as a nonpolar solvent?
Supercritical carbon dioxide is used as a non polar solvent to extract caffeine from coffee beens. Supercritical gases are not quite gases and not quite liquids but sort of in between.
What type of solvent is carbon dioxide?
Liquid carbon dioxide (supercritical CO2) is used as solvent.
