The Use of Volatile Inhibitors to Suppress Corrosion of Metals in the Atmosphere of Livestock Buildings

LE Tsygankov*¹, VI Vigdorovich¹, AN Dorokhova¹, LG Knyazeva¹, AV Dorokhov² and AA Uryadnikov²

Received: January 04, 2018;   Published: January 09, 2018

DOI: 10.26717/BJSTR.2018.02.000654

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Abstract

At room temperature, the protective efficacy of the volatile inhibitors (VIC) “IFHAN-A” (A-112, 114 and 118) was studied under atmospheric corrosion of carbon steel St3, brass L62 and copper M2 in the presence of corrosion stimulants (CS) in the air: CO₂ ((0.2-0.6) vol. %); H₂S ((10- 30) mg /m₃); NH₃ ((20-60) mg /m₃) and 100% relative humidity, which simulates the atmosphere of livestock buildings. In the case of carbon steel in the presence of a binary mixture of CSs: CO₂+NH₃, CO₂+H₂S and NH₃+H₂S, the protective action of the VIC is between 67 and 95%. When corrosion of brass and copper, the protective capacity of IFHAN-112 and IFHAN-118 decreases accordingly to 10 (Cu, IFHAN-112, NH₃+H₂S) and 13 (brass, IFHAN-118, СО₂+H₂S) % or 30% (brass, IFHAN-118, NH₃+H₂S). These VIC stimulate copper corrosion in the presence of a binary mixture (CO₂ + H₂S). Only in the presence of IFHAN-114, the protective effect does not decrease below 74%.

Keywords: Steel; Copper; Brass; Corrosion; Hydrogen Sulphide; Carbon Dioxide; Ammonia, Volatile Inhibitors; Protectiony

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