中文名:氢气,英文名:Hydrogen,CAS:1333-74-0,化学式:H2,分子量:2.02,密度:0.0899,熔点:−259.2°C (lit.),沸点:−252.8°C (lit.),水溶性:0.00017 g/100 mL,蒸汽压:Critical temperature is - 239.9 °C; noncondensible above this temperature,MSDS.
Category: Hydrogen. Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H2, sometimes called dihydrogen, [ 11 ] but more commonly called hydrogen gas, molecular hydrogen or simply hydrogen.