· In various analytical instrument applications, most commonly as a fuel component of combustion gases for Flame Ionization and Flame Photometric Detectors.
· As a carrier gas in gas chromatography. · In mixtures for heat treatment in metallurgy. · In mixtures for laser applications. · In mixtures for leak detection. · In hydrogenation processes. · In manufacturing of calibration mixtures. · In semiconductor fabrication: carrier gas, especially for silicon deposition.