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- W2379476677 abstract "HS-and S2-in water sample were translated into H2S after acidification with HCl.Then excessive metal zinc was added,H2S and lots of generated H2 as carrier were passed through hot ammoniacal solution and excessive Zn standard absorption solution.The residual Zn2+ after precipitation of ZnS was titrated with standard EDTA titration solution using chrome black T as indicator.This method realized the determination of sulfide in laboratory wastewater by aeration absorption-precipitation separation-EDTA titrimetry.The effect of some experimental conditions including the acidification of water sample,the selection of absorption solution and gas separation on determination was discussed,which avoided the interference of iodometric method.The measuring results were accordant with those obtained standard method.The RSD was 3.02%-3.08% and the recovery of standard addition was in the range of 96.0%-99.5%." @default.
- W2379476677 created "2016-06-24" @default.
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- W2379476677 date "2008-01-01" @default.
- W2379476677 modified "2023-09-28" @default.
- W2379476677 title "Determination of sulfide in waste water by EDTA titrimetry after precipitation with zinc sulfide" @default.
- W2379476677 hasPublicationYear "2008" @default.
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