Effect of benzotriazole on the existing pits of copper tube in fire sprinkler system.

Park, Eun-Ha; Ko, Sang-Jin; Kim, Jung-Gu

Park, Eun-Ha; Ko, Sang-Jin; Kim, Jung-Gu.

Afiliación

Park EH; School of Advanced Materials Science and Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 16419, South Korea.
Ko SJ; School of Advanced Materials Science and Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 16419, South Korea.
Kim JG; School of Advanced Materials Science and Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 16419, South Korea.

Heliyon ; 9(12): e23104, 2023 Dec.

Article en En | MEDLINE | ID: mdl-38205072

ABSTRACT

ABSTRACT

In this paper, two leaking tubes were investigated among copper tubes injected with 200 and 400 ppm benzotriazole after 8 years of usage. The electrochemical tests were conducted in simulated pit-out and pit-in environments (i.e., regions outside and inside of the pit) to determine the effect of benzotriazole on the propagation of an existing pit. The electrochemical analysis results showed that 200 and 400 ppm benzotriazole exhibit relatively lower inhibition efficiency in an acidic simulated pit-in environment because of the difficulty of forming a protective film and the benzotriazole cationization.

Palabras clave

Copper; Corrosion inhibition; Electrochemical properties; Time-of-flight secondary ion mass spectrometry

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2023 Tipo del documento: Article País de afiliación: Corea del Sur Pais de publicación: Reino Unido

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