hydrogen ivo indra, vladimír holoubek. general information the word “hydrogen“ – from greek...
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HydrogenHydrogen
Ivo Indra, Vladimír HoloubekIvo Indra, Vladimír Holoubek
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General informationGeneral information
• The word “hydrogen“ – from Greek “water generator“
• discovered in 1766 by Henry Cavendish
• The Element no.1 in universe, biogenic
• Forms weak bonds with electronegative elements
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IsotopesIsotopes
• 1H – protium – no neutron, “light H“
• 2H – deuterium – 1 neutron, “heavy H“
• 3H – tritium – 2 neutrons, “super heavy H“
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ApplianceAppliance
• Reducing agent
• Welding – in mixture with oxygen
• Nuclear fusion – still in research, termonuclear bomb
• Power supply – future in energetics and transport
Welding - svařování
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WaterWater
• The most common substance on Earth, but in rivers and lakes there is only less than 0,003%
• Thanks to hydrogen bonds it has annomal properties
• Tomatoes and cucumbers contain 98% water.
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CompoundsCompounds
• Water
• Ammonia
• Hydrides
• Acids
• Organic compounds
• Hydrogen peroxide
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Hydrogen – future of transportHydrogen – future of transport
• Ecologic way of car gear
• In research because of strong reactivity
• 2 ways :hydrogen tank or small electrolyser in car
• Now still too dangerous and expensive
Gear - pohon
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