# Schiff base compound as a corrosion inhibitor for mild steel in 1M HCl

Schiff base compound as a corrosion inhibitor for mild steel in 1M HCl A new Schiff base compound named 4-(4′-benzoylhydrazine)-pyridinecarboxaldehyde hydrazone (BPBH) was synthesized and investigated as a corrosion inhibitor for mild steel in 1 M HCl using weight loss measurements, electrochemical techniques, and adsorption studies. The structure of BPBH was characterized by elemental analysis, infrared spectroscopy (IR), and 1H nuclear magnetic resonance (NMR). The results clearly suggest that the compound acts as a mixed-type inhibitor of acid corrosion of mild steel. The adsorption of BPBH on the metal surface in 1 M HCl was found to agree with the Langmuir isotherm with a standard free energy of adsorption ( $$\Delta G_{\text{ads}}^{0}$$ Δ G ads 0 ) of −31.60 kJ/mol. Scanning electron microscopy images indicate that BPBH exhibits good corrosion inhibition performance for mild steel in 1 M HCl. Quantum chemical calculations were also carried out to verify the inhibition efficiencies obtained from all the experiments. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

# Schiff base compound as a corrosion inhibitor for mild steel in 1M HCl

Research on Chemical Intermediates, Volume 41 (7) – Mar 14, 2014
18 pages

/lp/springer-journals/schiff-base-compound-as-a-corrosion-inhibitor-for-mild-steel-in-1m-hcl-hzAtVNW9pT
Publisher
Springer Journals
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1579-8
Publisher site
See Article on Publisher Site

### Abstract

A new Schiff base compound named 4-(4′-benzoylhydrazine)-pyridinecarboxaldehyde hydrazone (BPBH) was synthesized and investigated as a corrosion inhibitor for mild steel in 1 M HCl using weight loss measurements, electrochemical techniques, and adsorption studies. The structure of BPBH was characterized by elemental analysis, infrared spectroscopy (IR), and 1H nuclear magnetic resonance (NMR). The results clearly suggest that the compound acts as a mixed-type inhibitor of acid corrosion of mild steel. The adsorption of BPBH on the metal surface in 1 M HCl was found to agree with the Langmuir isotherm with a standard free energy of adsorption ( $$\Delta G_{\text{ads}}^{0}$$ Δ G ads 0 ) of −31.60 kJ/mol. Scanning electron microscopy images indicate that BPBH exhibits good corrosion inhibition performance for mild steel in 1 M HCl. Quantum chemical calculations were also carried out to verify the inhibition efficiencies obtained from all the experiments.

### Journal

Research on Chemical IntermediatesSpringer Journals

Published: Mar 14, 2014

## You’re reading a free preview. Subscribe to read the entire article.

### DeepDyve is your personal research library

It’s your single place to instantly
that matters to you.

over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month ### Explore the DeepDyve Library ### Search Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly ### Organize Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place. ### Access Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals. ### Your journals are on DeepDyve Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more. All the latest content is available, no embargo periods. DeepDyve ### Freelancer DeepDyve ### Pro Price FREE$49/month
\$360/year

Save searches from
PubMed

Create folders to

Export folders, citations