Tritium

one proton

Hydrogen is a colourless gas – depending on the production type, different colours are assigned to the hydrogen. Green hydrogen is produced by electrolysis of water, using only electricity from renewable energies.

Brown hydrogen is formed through coal gasification. Production of grey hydrogen from natural gas throws off carbon waste. That is its production results in the production of large volumes of carbon dioxide. Blue hydrogen is cleaner version for which the emissions of carbon are captured and stored, or reused.

What is grey hydrogen? Grey hydrogen has been produced for many years. It is a similar process to blue hydrogen – SMR or ATR are used to split natural gas into Hydrogen and CO2. But the CO2 is not being captured and is released into the atmosphere.

SUMMARY OF TOXICITY At very high concentrations in air, hydrogen is a simple asphyxiant gas because of its ability to displace oxygen and cause hypoxia (ACGIH 1991). Hydrogen has no other known toxic activity.

This video looks at the three different types of hydrogen – gray, blue and green – and examines their environmental credentials. Gray hydrogen is made using fossil fuels like oil and coal, which emit CO2 into the air as they combust.

Blue hydrogen is created from fossil sources, where the carbon emissions are captured and stored. Green hydrogen is made from non-fossil sources and favoured by policy makers who are wary of keeping the fossil economy going, even with CCS. Integrating hydrogen will require a high level of technology interdependence.

The water is in fact not colorless; even pure water is not colorless, but has a slight blue tint to it, best seen when looking through a long column of water. The blueness in water is not caused by the scattering of light, which is responsible for the sky being blue.

Hydrogen: uses

• commercial fixation of nitrogen from the air in the Haber ammonia process.
• hydrogenation of fats and oils.
• methanol production, in hydrodealkylation, hydrocracking, and hydrodesulphurization.
• rocket fuel.
• welding.
• production of hydrochloric acid.
• reduction of metallic ores.

However, as hydrogen cars densely pack their energy storage, they’re usually able to achieve longer distances. While most fully electric vehicles can travel between 100-200 miles on a single charge, hydrogen ones can get to 300 miles, according to AutomotiveTechnologies.

Some of the disadvantages of hydrogen energy include:

• Hydrogen Energy is Expensive.
• Storage Complications.
• It’s Not the Safest Source of Energy.
• Tricky to Move Around.
• It is Dependent on Fossil fuels.
• Hydrogen Energy Cannot Sustain the Population.

about 5.5 billion years

Astronomers estimate that the sun has about 7 billion to 8 billion years left before it sputters out and dies. Humanity may be long gone by then, or perhaps we’ll have already colonized another planet.

4.543 billion years

The planet is one of the oldest known extrasolar planets, believed to be about 12.7 billion years old….PSR B1620−26 b.

Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.

3.5 billion years ago

The seventh planet from the sun, Uranus has the coldest atmosphere of any of the planets in the solar system, even though it is not the most distant.