Spectrophotometric Determination of the Ca Ion Content in Steel Slag by Using Chlorophosphonazo as the Spectral Chromogenic Reagent

Abstract:

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Steel slag was carbonated and the Ca2+ in steel slag was also dissolving under different carbonation time and dissolution condition. As the spectral chromogenic reagent, chlorophosphonazo was used to analyze the leaching law of Ca2+ in steel slag. The results showed that, Ca2+ concentration in uncarbonated steel slag could rise from 240.79 μg/ml to 802.83 μg/ml in 120 min and Ca2+ concentration varied slowly after 120 min; The f-CaO in uncarbonated steel slag was 2.67%, but reduced from 2.67% to 0.88% after carbonating 3 min and reduced from 0.88% to 0.58% after carbonating 180 min; Ca2+ leaching concentration reduced from 102.31 μg/ml to 44.97 μg/ml after carbonating 180 time; Under the same leaching time(t=90min), the smaller the particle size, the more the leaching concentration of Ca2+ in steel slag.

Info:

Periodical:

Advanced Materials Research (Volumes 306-307)

Edited by:

Shiquan Liu and Min Zuo

Pages:

989-993

DOI:

10.4028/www.scientific.net/AMR.306-307.989

Citation:

H. L. Zhao et al., "Spectrophotometric Determination of the Ca Ion Content in Steel Slag by Using Chlorophosphonazo as the Spectral Chromogenic Reagent", Advanced Materials Research, Vols. 306-307, pp. 989-993, 2011

Online since:

August 2011

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Price:

$35.00

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