http://www.cnhs.cc/industrial-gas/
China Industrial Gas Colorless, tasteless, odorless, non-toxic flammable gas. The melting point is - 259.2 鈩? and the boiling point is - 252 77 鈩? relative density (O 鈩? air=1) 0 06960. Gas density 0.08342kg. 111-3 (21.1 鈩? 101 3kPa);聽 Liquid density 70. 96kg. n-3 (- 252.8 鈩? 101 3kPa). The critical temperature is 239.9 鈩?and the critical pressure is 1.297MPa. Dissolve in about 50 volumes of water at 0 鈩? It is asphyxiant at high concentration. Very easy to diffuse and penetrate. Strong reducing agent, penetrating steel, hydrogen embrittlement. Hydrogen molecule is composed of two isomers, and the ratio of positive and secondary hydrogen is 75:25 at room temperature. With the decrease of temperature, the proportion of secondary hydrogen increases, accompanied by the release of conversion heat. 20. At 4K, the balance composition is 0.2:99.8. Hydrogen is non-toxic, but it cannot sustain life. It can form explosive mixture when mixed with air, and can cause combustion and explosion when encountering open fire and high heat. It can react violently with fluorine, chlorine, etc. No flame can be seen during combustion, and it is easy to explode when mixed with air, oxygen, chlorine, etc. The autoignition temperature is 571.2t. The flammability limit in air is 4.0%~75.0%. 聽 High purity hydrogen is mainly used in the manufacture of large-scale integrated circuits to provide a reducing atmosphere as the base gas for preparing SiH4/H2, PH3/H2, B2 H6/H2 and other gas mixtures. In the production process of electric vacuum materials and devices, the requirements for hydrogen purity are also very high. The anode, cathode, grid and other metal devices of the electron tube need to undergo special hydrogen burning treatment. In addition, it is used as a protective gas and a carrier gas in the epitaxial process of silicon and gallium arsenide. 聽聽China Industrial Gas website:http://www.cnhs.cc/industrial-gas/
China Industrial Gas Colorless, tasteless, odorless, non-toxic flammable gas. The melting point is - 259.2 鈩? and the boiling point is - 252 77 鈩? relative density (O 鈩? air=1) 0 06960. Gas density 0.08342kg. 111-3 (21.1 鈩? 101 3kPa);聽 Liquid density 70. 96kg. n-3 (- 252.8 鈩? 101 3kPa). The critical temperature is 239.9 鈩?and the critical pressure is 1.297MPa. Dissolve in about 50 volumes of water at 0 鈩? It is asphyxiant at high concentration. Very easy to diffuse and penetrate. Strong reducing agent, penetrating steel, hydrogen embrittlement. Hydrogen molecule is composed of two isomers, and the ratio of positive and secondary hydrogen is 75:25 at room temperature. With the decrease of temperature, the proportion of secondary hydrogen increases, accompanied by the release of conversion heat. 20. At 4K, the balance composition is 0.2:99.8. Hydrogen is non-toxic, but it cannot sustain life. It can form explosive mixture when mixed with air, and can cause combustion and explosion when encountering open fire and high heat. It can react violently with fluorine, chlorine, etc. No flame can be seen during combustion, and it is easy to explode when mixed with air, oxygen, chlorine, etc. The autoignition temperature is 571.2t. The flammability limit in air is 4.0%~75.0%. 聽 High purity hydrogen is mainly used in the manufacture of large-scale integrated circuits to provide a reducing atmosphere as the base gas for preparing SiH4/H2, PH3/H2, B2 H6/H2 and other gas mixtures. In the production process of electric vacuum materials and devices, the requirements for hydrogen purity are also very high. The anode, cathode, grid and other metal devices of the electron tube need to undergo special hydrogen burning treatment. In addition, it is used as a protective gas and a carrier gas in the epitaxial process of silicon and gallium arsenide. 聽聽China Industrial Gas website:http://www.cnhs.cc/industrial-gas/
http://www.cnhs.cc/industrial-gas/
China Industrial Gas Colorless, tasteless, odorless, non-toxic flammable gas. The melting point is - 259.2 鈩? and the boiling point is - 252 77 鈩? relative density (O 鈩? air=1) 0 06960. Gas density 0.08342kg. 111-3 (21.1 鈩? 101 3kPa);聽 Liquid density 70. 96kg. n-3 (- 252.8 鈩? 101 3kPa). The critical temperature is 239.9 鈩?and the critical pressure is 1.297MPa. Dissolve in about 50 volumes of water at 0 鈩? It is asphyxiant at high concentration. Very easy to diffuse and penetrate. Strong reducing agent, penetrating steel, hydrogen embrittlement. Hydrogen molecule is composed of two isomers, and the ratio of positive and secondary hydrogen is 75:25 at room temperature. With the decrease of temperature, the proportion of secondary hydrogen increases, accompanied by the release of conversion heat. 20. At 4K, the balance composition is 0.2:99.8. Hydrogen is non-toxic, but it cannot sustain life. It can form explosive mixture when mixed with air, and can cause combustion and explosion when encountering open fire and high heat. It can react violently with fluorine, chlorine, etc. No flame can be seen during combustion, and it is easy to explode when mixed with air, oxygen, chlorine, etc. The autoignition temperature is 571.2t. The flammability limit in air is 4.0%~75.0%. 聽 High purity hydrogen is mainly used in the manufacture of large-scale integrated circuits to provide a reducing atmosphere as the base gas for preparing SiH4/H2, PH3/H2, B2 H6/H2 and other gas mixtures. In the production process of electric vacuum materials and devices, the requirements for hydrogen purity are also very high. The anode, cathode, grid and other metal devices of the electron tube need to undergo special hydrogen burning treatment. In addition, it is used as a protective gas and a carrier gas in the epitaxial process of silicon and gallium arsenide. 聽聽China Industrial Gas website:http://www.cnhs.cc/industrial-gas/
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