Hydrogen  H2

Category:

Description

Product Name:  Hydrogen  H2
Packing: 40L, 44L, 47L, 50L cylinder (GB, ISO, DOT)
Filling Content: 5m3-6m3
Items Specifications
H2 99.999% 99.9999%
O2 ≤1.0 ppmv ≤0.05 ppmv
N2 ≤5.0  ppmv ≤0.2  ppmv
CO2 ≤1.0 ppmv ≤0.02 ppmv
CO ≤1.0 ppmv ≤0.02 ppmv
CH4 ≤1.0 ppmv ≤0.01 ppmv
H2O ≤3.0 ppmv ≤0.5 ppmv
Transportation
DOT Shipping Name Hydrogen, Compressed
DOT Classification 2.1
DOT Label Flammable Gas
UN Number UN 1049
CAS No. 133-74-0
CGA/DISS/JIS/BS341/DIN477 350/724/W22-14L/NO.4/NO.1
Shipped as  Compressed Gas
Technical Information
Cylinder State @ 21.1°C Gas
Flammable Limits In Air 4–74.5 %
Auto Ignition Temperature (°C ) 475
Molecular Weight (g/mol) 2.016
Specific gravity (air =1) 0.071
Critical Temperature ( °C ) -239.97
Critical Pressure ( psig ) 372.785
Applications
· 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.