Journal of Analytical Methods in Chemistry / 2016 / Article / Tab 5

Research Article

Measurement of Total Free Iron in Soils by H2S Chemisorption and Comparison with the Citrate Bicarbonate Dithionite Method

Table 5

The sulfur capacities and estimated total free iron of six representative soil samples at 773 K under the experimental condition of 50% CO.

Soil seriesBreakthrough time (min)Sulfur capacity (%)Sulfur content by EA (%)Sulfur balance
(%)
Estimated total free iron
(Fe2O3%)
CBD-Fe
(Fe2O3%)

Taikon23.21.011.0299.022.532.54
Kuiren13.10.570.55103.641.431.42
Wukuiliao22.40.980.97101.032.442.45
Sofong4.60.200.1894.440.500.45
Jensui8.20.360.35102.860.890.92
Houli34.31.491.47101.363.733.72

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