in neat (no solvent) kept for 3 h in porcelain boats contained in a quartz-glass elec. heated tube (150 - 300.degree) in an atm. of dried carbon dioxide; withdrawn from the furnace; cooled in a current of test gas; argentometric anal.;
参考文献
Golov, V. G.; Rysikhin, A. I.; Barkina, E. S.
Journal of Applied Chemistry USSR (English Translation), 1983 , vol. 56, p. 649 - 651
Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), 1983 , vol. 56, p. 681 - 683
in water (Ar); ppt. washed several times (water); dried in vacuo; heating pellet in silver crucible sealed in glass tube to 843 K over a period 70 h; held for 150 h; slow cooled to room temp.; crystn.;
in sodium hydroxide byproducts: NH3; generation of Na cyanamide by treatment of CaCN2/C with aq. NaF, saponification; reuse of CaF2 after working up;;
参考文献
Gmelin Handbook: Na: SVol.1, 68, page 292 - 294
Full Text Show Details
Buchner, M.
Patent: US1737297 , 1929 ;
C. I, 1930 , p. 876
Full Text Show Details
Buchner, M.
Patent: DE490560 , 1930 ;
C. I, 1930 , p. 2141
in neat (no solvent) byproducts: N2; in dry air treated with Ascarite to remove CO2; kept for 3 h in porcelain boats contained in a quartz-glass elec. heated tube (200 - 225.degree); withdrawn from the furnace; cooled in a current of test gas; argentometric anal.; IR;
参考文献
Golov, V. G.; Rysikhin, A. I.; Barkina, E. S.
Journal of Applied Chemistry USSR (English Translation), 1983 , vol. 56, p. 649 - 651
Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), 1983 , vol. 56, p. 681 - 683
