air; sodium salt of cobalt disulfophthalocyanine in water aq. soln. containing Na2CO3 and catalyst (CoPC(SO3Na)2) absorbed H2S; H2S catalytical oxidized by atmospheric O2; iodometric titrn.;
参考文献
Ryazantsev; Malikov; Batoeva; Faddeenkova
Russian Journal of Applied Chemistry, 2007 , vol. 80, # 9 p. 1544 - 1548
salpeter cake in neat (no solvent) mixing nitric cake and soda; heating the mixture at 125 °C;;
参考文献
Johnston, J.
J. Ind. Eng. Chem., 1918 , vol. 10, p. 470 - 470
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Gmelin Handbook: Na: MVol., 181, page 542 - 544
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Solvay Prozess Co.
Patent: AU870746 , 1906 ;
sulfur dioxide in water pH = 4, after 6 - 44 h amts of trithionate 20 percent; after storage for 6-44 h, the amt. of trithionate in the product rises up to 20percent;;
water in water acidification of a soln. of 110 g cryst. Na2CO3 in 150 ml H2O and 50 g NaNO2 (96 percent) on passing in SO2; formation of nitridotrisulfate and decompn. on cooling for 1/4 h; neutralization with concd. soda soln.; evapn. in a dessicator to a weight of 300 g;; pptn. of formed Na2SO4 on cooling down, removal of Na2SO4; crystn. of 90-100 g product on further concg. in vacuum; further product is isolated on cooling down the mother liquor, removing pptd. Na2SO4 and evapg.;;
参考文献
Gmelin Handbook: Na: MVol., 222, page 631 - 633
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反应条件
in not given 10 min boiling, decompn. of Na2S3O6 at long boiling;
