Thermodynamics of Cadmium Sorption on Different Soils of West Bengal, India

Table 2

Conventional Langmuir constants of Cd sorption in soils (data represent mean of tree replications ± SD).

Sample ID	Temperature (°C)
	25			35			45
	Conventional Langmuir constants
	𝑏 (mg kg^−1)	𝑘 (L mg^−1)	𝑅^2	𝑏 (mg kg^−1)	𝑘 (L mg^−1)	𝑅^2	𝑏 (mg kg^−1)	𝑘 (L mg^−1)	𝑅^2
S1	33.56±4.07	0.027±0.001	0.816*	37.74±7.17	0.041±0.001	0.828*	43.86±6.19	0.045±0.001	0.839*
S2	47.17±3.85	0.029±0.001	0.827*	53.76±3.04	0.041±0.001	0.844*	61.35±7.71	0.055±0.001	0.874*
S3	84.03±7.78	0.027±0.002	0.844*	89.29±7.78	0.037±0.001	0.860*	99.01±8.79	0.045±0.001	0.875*
S4	28.57±3.79	0.022±0.002	0.814*	29.59±3.33	0.031±0.001	0.797*	34.97±6.13	0.038±0.001	0.805*
S5	24.39±3.07	0.018±0.001	0.810*	26.11±4.02	0.023±0.001	0.784*	28.57±2.07	0.034±0.001	0.791*

∗Significant at 0.05% level.