Carbon dioxide exists naturally in the Earth’s atmosphere as a trace gas at a concentration of about 0.04% (400 ppm) by volume. CO2 is the fourth most abundant gas in the earth’s atmosphere. Carbon dioxide is colourless, odourless (at low concentration), faintly acidic-tasting at higher concentration and non-flammable. Human senses cannot detect it at low […]
Carbon monoxide (CO) is a colourless, odourless, tasteless, non-irritating gas. So it cannot be detected by human senses. In atmosphere CO is a trace gas with volume concentration <1 ppm. But it is a significantly toxic gas. It is a poison strong enough to kill you. Carbon monoxide poisoning can cause feelings of paranoia and hallucinations, […]
Di-oxygen (commonly called Oxygen) is a colourless, odourless, and tasteless gas. By mass, oxygen is the third most abundant element in the universe after hydrogen and helium. Our atmosphere contains approx. 21% of oxygen which is just the right amount to support normal life. Human senses cannot detect it or its increase or decrease […]
Di-oxygen (commonly called Oxygen) is a coluorless, odourless, and tasteless gas. By mass, oxygen is the third most abundant elment in the universe after hydrogen and helium. Our atmosphere contains approx. 21% of oxygen which is just the right amount to support normal life. It becomes hazardous as it increases. There is […]
On Earth, the element forms about 77% of its atmosphere and as such is the most abundant pure element. Nitrogen is transparent, colourless, odourless, tasteless gas. So, human senses cannot detect it. Its density is almost same as that of air ( air is 78% Nitrogen). Its density is 1.25*10-3 g.cm-3 versus 1.28*10-3 g.cm-3 of air. […]
It is the 1st element in the periodic table and obviously the lightest. Hydrogen gas (dihydrogen or molecular hydrogen) is highly flammable and will burn in air over a very wide range of concentrations between 4% and 75% by volume. This means its LEL is 4% vol mixture of hydrogen with standard air and UEL is 75%. […]
DAG intends to be a reference website to choose a product with optimum specifications, features and complexity as suitable for your application through a study of properties of your gases, evaluation of your environment (operation, management and ambient conditions) and application of this knowledge to choose the just-right-fit product/system solution. This website uses simple language and […]
