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Contents contributed and discussions participated by Yeva Berkovich

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Yeva Berkovich

The Haber Process - 4 views

www.chm.bris.ac.uk/...haber.htm

shared by Yeva Berkovich on 14 Feb 13 - No Cached
  • His wife (also a chemist) objected so much to his 'immoral' role that she committed suicide by shooting herself in his living room
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      Stalin's wife also killed herself because she didn't like his morals. neat.
  • NH3 is oxidised to NO2 and NO3
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      oxidized: loses electrons
  • One gas he invented was a cyanide-based gas named Zyklon B. This is quite ironic, since Haber was originally of Jewish descent (although he renounced his religion in favour of Christianity to 'appear more German') - he didn't realise that this gas was to be used 15 years later in the Nazi death camps to kill his Jewish countrymen.
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      Are scientific advances always beneficial to the world?
Yeva Berkovich

Ammonia Synthesis - 0 views

ic.galegroup.com/...ReferenceDetailsWindow

shared by Yeva Berkovich on 14 Feb 13 - No Cached
  • It has a sharp odor that stings the nostrils and it can cause suffocation if inhaled in sufficient quantity.
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      neat
  • Although a practically inexhaustible source of nitrogen exists in the atmosphere, which consists of about 80 percent nitrogen, no one knew how to economically combine this with hydrogen to produce ammonia (NH3) on a large scale. In Germany, Fritz Haber began investigating this problem. In principle the chemistry of ammonia synthes
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      materials available but process was unknown
  • The Haber-Bosch process has remained essentially unchanged since the early 1900s. It is used today to manufacture thousands of tons of ammonia worldwide, accounting for more than 85 percent of total ammonia production.
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      what is the other 15% ?
Yeva Berkovich

Gale Science In Context - Document - 2 views

ic.galegroup.com/...DocumentToolsPortletWindow

shared by Yeva Berkovich on 14 Feb 13 - No Cached
  • high-pressure catalytic reactions of nitrogen (from air) with hydrogen
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      high pressure because it pushes the forward reaction
  • In this attraction, called association,
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      is it always called attraction, or is that just for this molecule?
  • Much nitrogen is normally excreted by humans (and other mammals) as urea, a water soluble solid, but fish can excrete ammonia directly.
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      fish are cool
  • ...1 more annotation...
  • feed supplement for cattle, aiding in the rapid building of protein by the animals.
    • Yeva Berkovich
      Yeva Berkovich on 14 Feb 13
       
      is this good for the well being of cows?
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