Skip to main content

Table 2 Elemental compositions of the synthetic “c-disordered” H+-birnessites after exchanged with Mg2+ for 24 h

From: Formation of todorokite from “c-disordered” H+-birnessites: the roles of average manganese oxidation state and interlayer cations

Sample

Na (mmol/g)

K (mmol/g)

Mg (mmol/g)

Mn (mmol/g)

K/Mn

Mg/Mn

C/Mn*

0.42-Na-H-Bus

0.01

0.05

1.86

9.55

0.005

0.195

0.396

0.52-Na-H-Bus

0.02

0.04

2.34

8.56

0.005

0.273

0.554

0.67-Na-H-Bus

0.01

0.04

2.43

7.64

0.005

0.318

0.643

0.52-K-H-Bus

0

0.26

1.82

7.78

0.033

0.234

0.501

0.52-H-Bus

0.02

0.11

1.00

9.13

0.012

0.110

0.233

  1. * Equivalent charge of metal ions per Mn.
Back to article page

Geochemical Transactions

ISSN: 1467-4866

Contact us