in water Kinetics; oxidation of NaHSO3 (prepd. by absorption of SO2 in aq. Na2HPO4 soln.) with O2 (40°, various pH values);
参考文献
Journal of Applied Chemistry USSR (English Translation), , vol. 55, p. 1308 - 1311
Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), , vol. 55, p. 1420 - 1423
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反应条件
in not given in saturated soln. of NaHSO3; CaSO4 and less CaSO3 as residue, Na2SO4 in the solution;
参考文献
Liebigs Annalen der Chemie, , vol. 151, p. 340 - 360
S: MVol.B2, 1.6.2.2, page 516 - 517
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反应条件
in neat (no solvent) byproducts: Na3FeO4, Na2FeO4; glove-box (P2O4, NaOH); mixed; ground; heated; nature of the final products depends on the ratio Na2O2/FeSO4 and temp. (400-1000°C); chem. anal.; IR; powd. XRD; TG; DTA;
in water byproducts: SO2; acidifying a soln. of 2 mol NaNO2 and 3 mol Na2CO3 in H2O on passing in SO2; formation of (NaSO3)3N and NaS2O5; hydrolysis at the neutral point forming (NaSO3)2NH, Na2SO4, SO2; removal of SO2 on passing in a stream of air; evaporation on a water bath;; crystallization of Na2SO4 on cooling at 0 °C; dilution with the double volume of water; formation of an alkaline soln. by addition of water; crystallization in a refrigerator;;
参考文献
Journal of the Chemical Society, , vol. 61, p. 958 - 958
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反应条件
in solid byproducts: MgO, Al2O3; calcinating solid mixt. of Mg and Na3Al(SO4)3 (molar ratio 3/2) in Ar at 900°C, 1h;
