in not given reaction of a mixture of Na2SO4 and K2SO4;;
参考文献
Na: MVol., 180, page 541 - 542
AU1194465 , ;
C. A., , p. 2506
→
反应条件
in not given heating of NaOH and NaIO3 solns., boiling, addn. of K2S2O8 and NaOH, heating for 15 min., cooling to 40.degree C,; product contaminated with Na2SO4;
in water byproducts: SO2; passing SO2 in a soln. of 2 mol Na2S2O3 and 3 mol Na2CO3 in H2O; acidifying the soln. on passing in SO2; formation of (NaSO3)3N, Na2S2O5; hydrolysis of (NaSO3)3N and reaction of Na2S2O5 at neutral point forming (NaSO3)2NH, NaSO4 and SO2;; removal of an excess of SO2 on passing a stream of air in the soln.; addition of a small amount of Na2CO3 and evaporation on a water bath; pptn. of sulfate at 0 °C; repeated evapn. and cooling; crystn. of (NaSO3)2NH on cooling at ambient temp.;;
参考文献
Journal of the Chemical Society, , vol. 61, p. 954 - 954
