Natural early history

The expl nature of N trichloride has been known since the end of the 18th century when Sir H. Davy reported, The fulminating oil which you mentioned roused my curiosity and nearly deprived me of an eye. After some months confinement I am again well. (Ref 12). The early history of this compd is reviewed in this Ref. It is readily prepd by the action of Cl on ammonia or Amm salts (Refs 2,6 13) or by the electrolysis of an unstirred coned soln of Amm chloride at 35—40° (Ref 4). A procedure for the prepn of a soln of N trichloride in chlf is described In Ref 1, and prepn on an industrial scale in Ref 7... 

Frondel, C. (1988). Benjamin Franklin s purse and the early history of Asbestos in the United States. Arch. Natural History, Society for History of Natural History. Cambridge, MA. In press. 

Ozima, M., Podosek, F. A., Igarashi, G. (1985) Terrestrial xenon isotope constraints on the early history of the Earth. Nature, 315, 471 —4. 

In the early history of acid catalysis, clays had a significant utility. The acid leaching of natural smectite clays produced amorphous silica-alumina [Si-Al] materials with large surface areas and active acid sites, which were used as acid catalysts [31],... 

Canfield DE (1998) A new model of Proterozoic ocean chemistry. Nature 396 450-452 Canfield DE, Habicht KS, Thamdrup B (2000) The Archean sulfiir cycle and the early history of atmospheric oxygen. Science 288 658-661... 

Sigma complexes of Si-H bonds were first reported by Graham in 1969 althongh the nonclassical nature of the bonding was not recognized until after the first reports on H2 complexes. The early history of this field has been reviewed by Graham and Schubert, and the literature through 2001 has been reviewed by Kubas. ... 

Both enzymes are prominent in the early history of oxidative biochemistry. The early work of Bertrand and Keilin and Mann on laccase and of Bourquelot, Bertrand, and Kubowitz on tyrosinase has been adequately covered in excellent reviews of both enzymes [tyrosinase (106) laccase (J07)]. Much of the early work was on the nature of the reactions catalyzed by these enzymes, and only brief mention is made here as to the nature of the reactions. 

Bizzarro M., Baker J., Haack H., Ulfbeck D., and Rosing M. (2003) Early history of the Earth s crust-mantle system inferred from hafnium isotopes in chondrites. Nature 421, 931-933. 

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