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- W2351910136 abstract "The samples were dissolved with ferric chloride solution,and the metallic iron was oxidized to ferrous chloride.After filtration and separation,the acidified filtrate was titrated by potassium dichromate standard solution using sodium diphenylamine sulfonate as indicator,realizing the determination of metallic iron in reduction products of titanium fine powder.The results showed that the optimal experimental conditions were as follows:the sample granularity was less than 0.125 mm;the concentration and dosage of ferric chloride solution were 10 g/L and 100 mL,respectively;the electromagnetic stirring time was 60 min.The accuracy of method was tested using HgCl2 analysis and mineral phase detection.The F test and t test results indicated that this method had no significant difference from HgCl2 method.Meanwhile,the comparison of X-ray diffraction and metallograph for sample before and after leaching further proved that there was no metallic iron phase in filter residue and the iron was fully leached.This method was applied to the determination of reduction product samples of titanium fine powder,and the relative standard deviation(RSD) of results was smaller than 2 %." @default.
- W2351910136 created "2016-06-24" @default.
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- W2351910136 date "2011-01-01" @default.
- W2351910136 modified "2023-09-23" @default.
- W2351910136 title "Determination of metallic iron in reduction products of titanium fine powder by potassium dichromate titrimetry after leaching with ferric chloride" @default.
- W2351910136 hasPublicationYear "2011" @default.
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