weblogo.gif (18287 bytes) 

Up About

 

Hydrogen is a reactive, colourless, odourless, tasteless gaseous element, found in the atmosphere at levels of about 0.0001%.  Like most gaseous elements, hydrogen is diatomic but it dissociates into free atoms at high temperatures.  Hydrogen melts at -259.2°C (-434.56°F) and boils at -252.77°C (-422.99°F), giving it the lowest boiling and melting points of all elements except helium.  Its gaseous specific gravity is 0.0695.

Hydrogen is produced by several methods, including steam/methane reforming, dissociation of ammonia and recovery from by-product streams from chemical manufacturing and petroleum reforming.  Hydrogen can be stored and transported as either a gas or a cryogenic liquid.

Hydrogen is used in petroleum refining processes such as hydrotreating, catalytic reforming and hydrocracking.  It is a raw material for innumerable chemical processes and is also used a fuel for rocket engines.  Hydrogen is often used as a reducing gas in metals processing operations, and can also be used in the manufacture of silicon wafers and computer chips.

 

Argon Carbon Dioxide

 

Home  |   Corporate Overview  |  Gases   |  On-Site Delivery Systems
Industries Served  |  Environmental Policy  |  News Releases .

About the information on this site.

Send mail to oxair@oxair.com.au   with questions or comments about this web site.
Copyright © 1998 Oxair Australia Pty Ltd
Last modified: August 27, 1998