Zero air gas
Zero air gas is a type of air that has been purified to remove all impurities, including hydrocarbons, carbon dioxide, and water vapor. It is typically used in laboratory applications where high levels of purity are required, such as gas chromatography and mass spectrometry.
Sepher gas kavian is a producer and importer of high quality laboratory gases and gas mixtures (calibration gases) and all related equipment for various industries. Sepher gas kavian is active in supplying pure laboratory gases and mixed gases in percent, ppb, ppm such as zero air gas.
Dry air (z.air) is available in grades 99.99, 99.999 and 99.9995 in carbon steel cylinders.
Dry air (z.air) grade 4 is available in 40 liter cylinder with 150 bar pressure and 50 liter cylinder with 200 bar pressure.
Dry air (z.air) grade 5 is available in 40 liter cylinder with 150 bar pressure and 50 liter cylinder with 200 bar pressure.
Dry air (z.air) grade 5.5 is available in 40 liter cylinder with 150 bar pressure and 50 liter cylinder with 150 bar pressure.
Imported grade 5.5 dry air (z.air) is available in a 50-liter cylinder with a pressure of 200 bar.
Imported grade 5 dry air (z.air) is available in a 50-liter cylinder with a pressure of 200 bar.
Zero air or dry air for the GC chromatograph
Zero air gas cylinder, pure laboratory dry air for use as carrier gas for GC chromatograph device with 99.999% grade 5 purity and 99.9995 grade 5.5 purity.
Zero air gas without water is available and can be provided in tanks and cylinders of 5 liters, 10 liters and 50 liters.
Resources
There are two main sources of this gas:
Compressed gas cylinders. Zero air gas is typically supplied in compressed gas cylinders. The cylinders are filled with gas that has been purified to a high level of purity.
On-site gas generators. On-site gas generators are devices that produce Z.air gas from ambient air. The generators use a series of filters to remove the impurities from the air.
The choice of source depends on the specific application. For applications where a high level of purity is required, compressed gas cylinders are the best option. However, for applications where a lower level of purity is acceptable, an on-site gas generator may be a more cost-effective option.
Here are some of the suppliers of this gas:
Airgas
Matheson Tri-Gas
Linde
Air Liquide
Praxair
When choosing a supplier, it is important to consider the purity level of the gas, the delivery method, and the cost. It is also important to make sure that the supplier is reputable and has a good safety record.
Technical specification
| Composition | It mostly consists of nitrogen (about 78% by volume) and oxygen (about 21% by volume). In addition, there are smaller amounts of other gases such as argon, carbon dioxide, neon and helium in it. |
| Humidity | Compared to moist air, it contains much less water vapor. Air humidity is measured as a ratio of water vapor density to the total volume of air, and in this gas, this ratio is close to its minimum value. |
| Physical properties | It has the same physical properties as normal air. Like humid air, it has the same density and molecular weight and has the same heat and mass transfer. |
Application
Here are some of the applications of this gas:
Gas chromatography: Gas chromatography is a analytical technique that is used to separate and identify compounds in a gas mixture. Zero air gas is used as the carrier gas in gas chromatography, as it is inert and does not interfere with the analysis.
Mass spectrometry: Mass spectrometry is a analytical technique that is used to measure the mass-to-charge ratio of atoms and molecules. This gas is used as the carrier gas in mass spectrometry, as it is inert and does not interfere with the analysis.
Vacuum pumps: Z.air gas is used as a purge gas in vacuum pumps, as it helps to remove contaminants from the vacuum chamber.
Medical applications: This gas is used in some medical applications, such as the production of oxygen therapy devices.
Electronics manufacturing: This gas is used in the manufacturing of electronic devices to remove contaminants that could interfere with the operation of the devices.
Food and beverage industry: This gas is used in the food and beverage industry to remove contaminants that could spoil food or beverages.
Danger
Z.air gas is a safe gas to use, but it is important to be aware of the potential dangers. Here are some of the dangers of this gas:
Oxygen displacement: This gas is essentially pure nitrogen and oxygen. However, it may also contain small amounts of other gases, such as argon, carbon dioxide, and water vapor. The level of these impurities will depend on the purification process used. If the purity of the gas is not high enough, it can displace oxygen in the air. This can be a safety hazard, especially in enclosed spaces.
Asphyxiation: If this gas is inhaled in high concentrations, it can lead to asphyxiation. Asphyxiation is a condition in which the body does not get enough oxygen. Symptoms of asphyxiation include shortness of breath, dizziness, and loss of consciousness.
Fire hazard: This gas is not flammable, but it can support combustion. This means that it can help fires to spread. If zero air gas is used in an enclosed space, it is important to make sure that there are no open flames or sparks.
