Comparative data on the protection performance of celery, pomegranate and green tea distillates on mild steel in weak H2SO4 solution
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Elsevier
Abstract
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The non-toxic properties of plant distillate for application as corrosion inhibitors is an effective alternative
to the toxic conventional derivatives currently applied in industries. Data on the corrosion inhibition
effect of celery, pomegranate and green tea distillates on mild steel corrosion in 0.5 MH2SO4 from coupon
analysis is presented. Results showed the distillates performed poorly at low concentrations from 15% to
45% distillate concentration. At 60% distillate concentration, their inhibition performance was average,
but below the values for effective inhibition performance with final inhibition efficiency values of
54.55%, 48.65% and 32.39% for celery, pomegranate and green tea distillates. However, at 75% concentration,
the inhibition efficiency values significantly increased to 85.74%, 82.85% and 62.70%. At 90% distillate
concentration, the inhibition efficiency outputs of the distillates increased further to 95.83%, 87.08%
and 92.37% signifying effective inhibition performance of the distillates. Statistical analysis through
ANOVA shows distillate concentration strongly influence the corrosion inhibition performance of the distillates
with values above 90% compared to exposure time with values below 7%, which is relatively negligible
but statistically relevant. Generally, the results show the distillates are effective at high
concentration with respect to distillate concentration.
Keywords
TJ Mechanical engineering and machinery