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A Comparative Spectrophotometric Study Using Ferrozine and 1,10-Ortho-phenanthroline to Evaluate the Iron Redox Ratio (Fe2+/Sigma Fe) in Glass Prepared by Microwave Heating

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata


Field	Value

Title	A Comparative Spectrophotometric Study Using Ferrozine and 1,10-Ortho-phenanthroline to Evaluate the Iron Redox Ratio (Fe2+/Sigma Fe) in Glass Prepared by Microwave Heating

Creator	Mandal, Biswajit Sinha, Prasanta Kumar Sen, Ranjan Mandal, Ashis Kumar

Subject	Glass

Description	In the present study, Fe-doped barium borosilicate glass has been melted at 1250 degrees C under microwave heating. The iron redox ratio (Fe2+/total Fe) in the glass is investigated by two spectrophotometric methods. A novel decomposition technique has been optimized to measure the ferrous oxidation state in glass. Ferrozine was chosen as a specific complexing reagent; it forms a deep violet color complex with Fe2+ and has a broad absorbance peak centered at 562 nm. 1,10-ortho-phenanthroline develops an orange color complex with Fe2+ (having an absorbance peak centered at similar to 510 nm) and has been used to determine ferrous ion in glass. Both the methods are compared and the estimated redox ratio was found to be higher in the ferrozine method. The error limit of measurement has been determined as 0.012 and 0.023 for the ferrozine and 1,10-ortho-phenanthroline methods, respectively.

Publisher	Japan Society for Analytical Chemistry

Date	2016-05

Type	Article PeerReviewed

Format	application/pdf

Identifier	http://cgcri.csircentral.net/3695/1/ashis.pdf Mandal, Biswajit and Sinha, Prasanta Kumar and Sen, Ranjan and Mandal, Ashis Kumar (2016) A Comparative Spectrophotometric Study Using Ferrozine and 1,10-Ortho-phenanthroline to Evaluate the Iron Redox Ratio (Fe2+/Sigma Fe) in Glass Prepared by Microwave Heating. Analytical Sciences, 32 (5). pp. 571-576. ISSN 0910-6340

Relation	http://cgcri.csircentral.net/3695/