| Identification | |
| Name: | Hydrogen |
| Synonyms: | -Compressed hydrogen |
| CAS: | 1333-74-0 |
| EINECS: | 215-605-7 |
| Molecular Formula: | H2 |
| Molecular Weight: | 2.02 |
| InChI: | InChI=1/H2/h1H |
| Molecular Structure: |  |
| Properties | |
| Transport: | UN 1049/1966/2034/2600 |
| Density: | 0.0899 |
| Stability: | Stable. Highly flammable. Readily forms explosive mixtures with air. Upper (U.K.) composition limit for use of a nitrogen/hydrogen mixture in the open lab is 5.7% hydrogen. |
| Refractive index: | 1.98 |
| Water Solubility: | 0.00017 g/100 mL |
| Solubility: | 0.00017 g/100 mL |
| Appearance: | Colorless gas and odorless |
| Specification: |
? Hydrogen (CAS NO.1333-74-0), its Synonyms are Hydrogen atoms ; Molecular hydrogen ; Protium ; H . Hydrogen is a colorless, odorless gas. Hydrogen is easily ignited. Once ignited Hydrogen burns with a pale blue, almost invisible flame. The vapors are lighter than air. Hydrogen is flammable over a wide range of vapor / air concentrations. Hydrogen is not toxic but is a simple asphyxiate by the displacement of oxygen in the air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. |
| Report: |
Reported in EPA TSCA Inventory. |
| Packinggroup: | O52 |
| Storage Temperature: | Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage. |
| Color: | Colorless gas CUBIC SOLID |
| Usage: | Oxyhydrogen flame is used in processing of quartz, in production of several metals which resist fusion, such as molybdenum, bismuth. |
| Safety Data | |
| Hazard Symbols |
F+:Highlyflammable
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