Purity has its own value whether it is a commodity or any natural resources. There is a trend that people tend to prioritise pure substances over other impure materials. As we all know that gas is one of the highly substantial natural resources of the planet. Gases are of different types, they are categorised according to their purity. Higher the purity more the advantages. High purity gas has their own features when comparing with the other quality gases. These types of gases are exclusively build up for analytic use only.
High purity gas gives you that extra safety feature since they are less likely to react with the atmosphere, whereas third quality gases can react with the atmosphere and can cause problem. In short we can say more the purity of the gas less the danger. Talking about the features of the high purity gas one of the important feature that it possess is that it gives you that consistency. Consistency is one of the important properties needed for a high purity gas since it gives accurate conclusions and precise values which will be really useful for your experimental results. Efficient analytical results and reliable data is also one of the trademark properties of these gases.
Uses of this high purity gases are plenty but some of the important uses being calibration of instruments, welding and steel refining. A whole variety of gases are also available in the market for the different uses. But commonly a mix of two or more gases is used in most of the processes. Argon is the popular choice for most of the cases because it is abundant and is highly volatile which gives you that precise measurement in case of calibration. A mix of argon and carbon di oxide is used for instrumental calibration. In case arc welding .a mixture of argon and oxygen is used since it reacts quickly when exposed to air.
There is also a class in purity called the ultra-purity gas, these types of gases are almost 99.99% pure and hence they are used for chemical analysis only. Gases like carbon di oxide, helium, nitrogen and oxygen are also used as high purity gas. Pure nitrogen is used for heat treatment and steel refining. This pure nitrogen can also be used in the field of optical fibre technology. One of the best features of this is that we can customise the percentage of purity according to our need than usual way.
High purity gas has its own advantages in different fields like food and beverage, health, aerospace and defence etc. Gases like pure hydrogen can be used in edible oil refining because of its lack of smell and less toxicity. Oxygen is one of the main gases used in almost all industries. Oxygen is commonly used for the treatment of waste water because of its colourless and odourless property. Oxygen is also useful because it helps in combustion and hence used as a mixture with other gases like argon and hydrogen.