Specialty Gases
Hydrogen Gas Supplier for New England
Hydrogen Gas
A colorless, odorless, flammable gas
Learn more about Hydrogen gas, a colorless, odorless, flammable gas, supplied by Middlesex Gases to commercial customers in Massachusetts, New Hampshire, Rhode Island and Connecticut and throughout New England.
TECHNICAL INFORMATION
| Chemical Symbol | H2 |
| Molecular Weight | 2.02 |
| Specific Volume | 192 ft3/lb |
| CAS Registry Number | 1333-74-0 |
SHIPPING INFORMATION
| DOT Proper Name | Hydrogen, Compressed |
| Hazard Class | 2.1 |
| ID Number | UN1049 |
| Labels | Flammable Gas |
CYLINDER SIZES AVAILABLE
| Std. Cylinder Sizes* | Contents | Cylinder Pressure (PSIG) | CGA Valve Connection |
|---|---|---|---|
| 300 | 261 | 2400 | 350 |
| 200 | 195 | 2000 | 350 |
| 80 | 71 | 2000 | 350 |
| 6K | 483 | 6000 | 703 |
*Nonstandard cylinder sizes available upon request
SPECIFICATIONS SUBJECT TO CHANGE
Additional Information
| Grade | Purity | Impurity | Specifications | Equipment Recommended |
|---|---|---|---|---|
| Research Purity 6.0 |
99.9999% | Oxygen Water Nitrogen THC CO2 + CO |
<0.2ppm <0.5ppm <0.3ppm <0.1ppm <0.1ppm |
3200 or 3500 |
| Ultra High Purity 5.0 |
99.999% | Moisture Oxygen Nitrogen Total Hydrocarbons |
<3ppm <1ppm <5ppm <1ppm |
3100 or 3200 |
| 4.5 Zero | 99.995% | Total Hydrocarbons | <0.5ppm | 3800 |
| High Purity 4.0 | 99.99% | Moisture Oxygen |
<10ppm <20ppm |
3100 or 3200 |
| 4.8 (6000 PSIG) | 99.998% | Moisture Oxygen |
<3ppm <5ppm |
3800 |
This information in no way replaces the Safety Data Sheets (SDS) for use and safety standards. Please refer to the SDS for details.
