Basic knowledge of industrial gases:

1.Definition

Industrial, the normal temperature and atmospheric pressure was a gaseous product is collectively referred to as industrial gas products.

2.Application

Industrial gas products is an important basic material of modern industry. Industrial gases have been hailed as the "blood of industry". With the rapid development of China's economy, industrial gas, as one of the basic elements of the national economy, plays an important role in the national economy.

The scope of application of: petroleum, chemical, metallurgy, steel, machinery, electronics, electricity, glass, ceramics, building materials, food, pharmaceutical, medical and other fields, city residents.

3. Classification of industrial gases

(1) According to the chemical properties.

①　Of toxic gases: such as Cl2, NH3.

②　Of flammable gases: such as H2, C2H2.

③　The Combustion-supporting gas: O2.

④　The no burning gas: such as N2, CO2, Ar.

National standard GB13690-1992, the 4 gases are divided into 3 categories, namely flammable and nonflammable (including combustion gas), toxic gas.

(2). According to the composition

①　Single variety of pure gas gas.

②　The multiple gas.

4. Risk characteristics of industrial gases

①　Combustible gas.

②　The toxic - toxic gases.

③　Hypoxia asphyxia.

④　The corrosive effect on industrial water - gas medium, easy to produce corrosive chemicals.

⑤　The explosive -- physical explosion and chemical explosion.