Argon is colorless, odorless, cannot burn itself, nor can it help to burn, and its content in the atmosphere is second only to nitrogen and oxygen, and its content is higher than carbon dioxide.

Standard gas is a uniform concentration, good stability and accurate measurement standards, they have the basic role of reproduction, preservation and transmission of quantitative values, in the field of physical, chemical, biological and engineering measurement used to calibrate measuring instruments and measurement processes, evaluate the accuracy of measurement methods and testing laboratory testing capabilities, determine the characteristics of materials or products, quantitative value arbitration. When using standard gases, the following eight issues need to be noted.

The main gas sources used for silicon epitaxial growth are hydrogen and chlorosilanes, such as silicon tetrachloride (SiCl4), trichlorosilicon (SiHCl3), dichlorosilane (SiH2Cl2).

800L sulfur dioxide production completed