Page 55 - Praxair - Specialty Gases and Equipment Reference Guide

H 2
Hydrogen

Transportation (M)SDS Reference
Information P-4604
UN Number: 1049 CAS Number
United States of America Canada Mexico
Shipping Name Hydrogen, Hydrogen, Hydrogen, 1333 - 74 - 0
Compressed Compressed Compressed General Description
Hazard Class 2.1 2.1 2.1 Colorless, odorless, flammable gas.
Label Flammable Gas Flammable Gas Flammable Gas

Product/ Purity Part Cylinder N 2 O 2 H 2 0 CO 2 CO THC Ar
Grade Number
Research, 6.0 99.9999% HY 6.0RS T, K 0.5 0.1 0.5 0.1 0.1 0.1 0.1
Chromatography, 99.9999% HY 6.0CH T, K, 0.5 0.5 0.5 0.1 0.1 0.1 –
6.0
Semiconductor 99.9999% HY 6.0SP T, K 0.5 0.2 0.2 0.1 0.1 0.1 –
Process, 6.0
Carrier, 5.5 99.9995% HY 5.5CA T, K, 3 1 1 0.5 0.5 0.5 –
Semiconductor 99.9995% HY 5.5SP T, K 2 0.5 0.5 0.5 0.5 0.5 –
Process, 5.5
Ultra High Purity, 99.999% HY 5.0UH T, K, Q – 1 3 – – 0.5 –
5.0
Semiconductor 99.999% HY 5.0SP T, K 6 2 3 1 1 1 –
Process, 5.0
Zero, 4.5 99.995% HY 4.5Z T, K – 5 3 – – 0.5 –
High Purity, 4.5 99.995% HY 4.5 6K, T, K, Q – 5 5 – – – –
Concentrations given are ppm by volume unless otherwise specified.
Maximum ppm unless otherwise noted.

Cylinders
Section B – Pure Gases
Cylinder Style Size Connection Pressure Volume Gross Weight
Type in (cm) CGA/DISS psig (bar) lb (kg) lb (kg)
6K Ultra High Pressure Steel 51 x 10 (129.5 x 24.4) 703 6000 (460) 484 (13.98) 306 (139)
T High Pressure Steel 55 x 9.3 (139.7 x 23.5) 350/724 2400 (183) 261 (7.24) 145 (66)
K High Pressure Steel 51 x 9 (129.5 x 22.9) 350/724 2000 (138) 196 (5.44) 134 (61)
Q High Pressure Steel 31 x 7 (78.7 x 17.8) 350 2000 (138) 65 (1.80) 65 (30)
Cylinder packs and tube trailers
are available upon request.

Equipment Recommendations

Research, 6.0 Valve panel, 4000 series regulator Ultra High Purity, 3000 series regulator
Chromatography, 6.0 Valve panel, 4000 series regulator 5.0
Semiconductor Valve panel, 4000 series regulator Semiconductor 3000 series regulator
Process, 6.0 Process, 5.0
Carrier, 5.5 3000 series regulator Zero, 4.5 2000 series regulator
Semiconductor 3000 series regulator High Purity, 4.5 2000 series regulator
Process, 5.5

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