2680. ---------------. [PICHLER, H., AND BUFFLEB, H.] [Properties of Some Solid Paraffins Produced From Carbon Monoxide and Hydrogen at High Pressures on Ruthenium Catalysts, With Special Reference to the Previously Unknown Highest Melting Constituents.

2680. ---------------. [PICHLER, H., AND BUFFLEB, H.] [Properties of Some Solid Paraffins Produced From Carbon Monoxide and Hydrogen at High Pressures on Ruthenium Catalysts, With Special Reference to the Previously Unknown Highest Melting Constituents.] Brennstoff-Chem., vol. 21, 1940, pp. 285-288; Chem. Zentralb., 1941, I, p. 119; Chem. Abs., vol. 35, 1941, p. 7365.

Paraffins were fractionated by means of solvents and the ultimate analysis, mean molecular weight, melting range, density, and viscosity of each fraction were determined. The dependence of melting point and viscosity on molecular weight is shown graphically. The highest melting fraction (132°-134°) had a mean molecular weight of 23,000 and d²⁰ 0.980. A comparison of paraffins formed on the Ru catalysts with those from medium pressure synthesis on Co catalysts showed that the former have the higher melting range. The production of such paraffins has not been possible so far by any other process.