Hydrogen By Special Gas & Equipment Solutions Pvt. Ltd.

Hydrogen Product information Quality Code Plus 5.0 5.7 6.0 Purity % volume >99.995 >99.999 >99.9997 >99.9999 Impurities ppm(where nothing else stated) H2O <5 <4 <2 <1 O2 <5 <2 <0.5 <0.1 N2 <4 <2 <0.1 CnHm <0.5 <0.1 <0.1 CO+CO2 <0.1 <0.1 General information Filling pressure at 15 C, bar: 200 Material recommendations: No restrictions. Characteristics Highly flammable. Colourless and odourless. Hydrogen burns with an invisible flame. Health risks Asphyxiating. Transport ADR Class 2, 1(b) Physical data Molecular weight: 2.02Boiling point at 1.013 bar, C: 252.8 Density (1.013 bar, 15 C) kg/m3: 0.085Vapour pressure at 0 C, bar:20 C, bar:Flammability range in air, % (Volume): 4.0-74.5Specific volume (1.013 bar, 15 C), m3/kg: 11.73 Source Hydrogen is most frequently produced for on-site usage by steam reforming of natural gas. Such plants may also be used as sources of hydrogen for the merchant market. Other sources are electrolysis plants, where the hydrogen is a by-product of chlorine production, and various waste gas recovery plants, such as at oil refineries or steel plants (coke oven gas). Hydrogen is also produced by electrolysis of water. Applications High purity hydrogen finds Widespread usage in the electronics industry both as a reducing agent and as a carrier gas. Hydrogen finds some usage in the welding and cutting of metals. Hydrogen is used in large quantities, (bulk supply or on-site generation) for the hydrogenation of vegetable and animal oils to produce margarine and other fats, hydro treatment of petroleum products, and hydrosulphuration of fuels in order to eliminate sulfur. Hydrogen is used in HF/DF chemical lasers. Hydrogen is used extensively in the metals industries because of its ability to reduce metal oxides and prevent oxidation of metals during heat treatment. It may be used either pure, as is often the case when heat treating stainless steel, or in a mixture with inert gases, argon or nitrogen. It is used in the production of carbon steels, special metals and semi-conductors. Hydrogen is used for combustion In industry, it is used to supply oxygen-hydrogen torches for glass working (quartz, Pyrex, etc), in the fabrication of artificial precious stones (ruby, etc), and for under water oxycutting In the laboratory, it is used in analyzer flames, reducing flame photometry detection instruments, flame ionization detection instruments, and fuel cells. Extremely pure hydrogen is used in the chemical industry for fine reduction processes. Liquefied hydrogen is used as a rocket fuel. In the laboratory liquid hydrogen is employed for solid physics research. In the nuclear industry para-hydrogen is employed to fill bubble chambers. In electrical power plants hydrogen is used as a coolant gas in turbogenerators. Hydrogen is used for synthesis of ammonia. Hydrogen is used as a reagent to produce high purity water.