Browsing Chemistry & Earth Sciences by Author "Al-Madfa, H. A."

Now showing items 1-2 of 2

    • Mercury pollution in doha (Qatar) coastal environment 

      Al-Madfa, H.; Dahab, O. Aboul; Holail, H. ( Wiley Periodicals, Inc. , 1994 , Article)
      Surface water and sediment samples were collected from the Doha coastal area and analyzed for content of physico-chemical forms of mercury. Dissolved reactive Hg (2.9 ng L?1) represented 81.0% of the total dissolved Hg ...

    • Reduction kinetics of ceria surface by hydrogen 

      Al-Madfa, H. A.; Khader, M. M.; Morris, M. A. ( Wiley Periodicals, Inc. , 2004 , Article)
      Powdered cerium dioxide (ceria, CeO2) as compressed, sintered pellets, of porosity 16.4% and density 5.99 g cm?3, were treated in hydrogen flow at 1 atm and various temperatures to effect reduction. The electrical conductivity ...