Journal of Analytical Methods in Chemistry / 2017 / Article / Tab 2

Research Article

Spectrophotometric Method for the Determination of Atmospheric Cr Pollution as a Factor to Accelerated Corrosion

Table 2

Deposition of Cr(III) as a result of coupled Cr(VI) transformation.

Experiment groupExposure conditionsCr(III) (ppm)
pH
3579

1Humid air8.9 ± 0.458.5 ± 0.0458.7 ± 0.58.12 ± 0.045
2Humid air + Cr(VI)11.5 ± 0.0811.05 ± 0.0728.9 ± 0.478.5 ± 0.2
3Humid air + SO28.35 ± 0.558.5 ± 0.0198.7 ± 0.208.7 ± 0.008
4Humid air + Cr(VI) + SO219.5 ± 0.04519.02 ± 0.06410.02 ± 0.0359.07 ± 0.045
5Humid air + Cr(VI) + SO2 + Fe+221.5 ± 0.5619.5 ± 0.5315 ± 1.111 ± 0.78

NO: not observed in 60 days.

You are browsing a BETA version of Hindawi.com. Click here to switch back to the original design.