in water byproducts: H2S; addn. of aq. (NH4)2S soln. to ground S; slow addn. of NaCN soln. (half amt.); heating to 90°C; addn. of the rest;; expelling H2S by CO2; concentrating by heating to 135°C; cooling down; crystn. of Na2CO3; concentrating filtrate by heating to 145-150°C;;
参考文献
Gmelin Handbook: Na: SVol.4, 9, page 1387 - 1389
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Pittsburgh Coke and Iron Co.
Patent: US2372119 , 1945 ;
C. A., 1945 , p. 3403
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反应条件
byproducts: Al2O3; sepn. from Si mechanically, from Al2O3 by water;
