INVESTIGATION OF MILD STEEL PROTECTION WITH GLASS WOOL IN CORROSIVE MEDIA

• Adebayo Felix Owa

  Federal University Oye-Ekiti

• Daniel Toyin Oloruntoba

  Federal University of Technology, Akure, Ondo State, Nigeria

• Muideen Adebayo Bodude

  University of Lagos, Akoka, Lagos State

• Fisayo Adesina

  Rufus Giwa Polytechnic, Owo, Ondo State

Chemicals are stored and transported from one point to other in glass wares and plastic containers, which are prone to breaking in services.  A study has been made of protection of mild steel lined with various quantity (1.0, 1.5, and 2.0 g) of glass wool exposed to three-corrosive media namely 3.5 wt% NaCl, 0.5M HCl, and 0.5M H₂SO_4; using weight loss method under static conditions at room temperature and potentiodynamic polarisation test. Weight loss result shown that Mild steels lined with 2.0 g of glass wool were the most adequately protected in the three-corrosive media; in order of corrosion rate values of 0.430 mm/yr in 0.5 M HCl, 0.053 mm/yr in 0.5 H₂SO₄ and 0.035 mm/yr in 3.5 wt% NaCl, respectively. While the potentiodynamic polarisation result revealed the corrosion rate values as 0.078 mm/yr in 0.5 M H₂SO_4, 0.057 mm/yr in 0.5 M HCl, and the least was in 3.5 wt% NaCl (0.022 x 10^-5 mm/yr). Comparison of the corrosion rate data of the two methods established that glass wool can protect mild steel in the studied environment.

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