523.    ---------------.  [CHEMICAL INDUSTRIES.]  Production of Fatty Acids by Air Oxidation of Paraffin Wax.  Vol. 60, No. 1, 1947, p. 64.

                  Reviews Germany method as practiced at Oppau.  (See Bureau of Mines Information Circular 7376, abs. 1494 and 1495).  The paraffin wax used may be produced by the hydrogenation of brown coal, from petroleum or from the Fischer-Tropsch synthesis.  In any case, it should consist of straight-chain hydrocarbons, with only small amounts of branched-chain or cyclic hydrocarbons.  The preferred chain length is C₁₆-C₃₀ and S compounds, and phenols should not be present as they inhibit the oxidation.