Table 1 Least square analysis of Cr K-edge XAS spectra

pH 4 (± 0.02)

CN

4^a

6^a

1.3 (3)

0.4 (2)

0.016 M

R

1.60 (1)

1.99 (1)

3.03 (2)

3.44 (3)

Na₂SO₄

σ²

0.005 (2)

0.003 (1)

0.007^a

0.002 (1)

pH 4 (± 0.02)

CN

4^a

6^a

1.2 (1)

0.6 (3)

0.01 M

R

1.65 (1)

1.98 (1)

3.00 (3)

3.48 (2)

NaNO₃

σ²

0.008 (4)

0.016 (1)

0.007^a

0.002 (1)