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Citation: Wang Dihua, Zou Jinyun, Qiu Wanchuan, Yang Xinghe. Inhibition of Dezincification of Brass[J]. Chinese Journal of Applied Chemistry, ;1997, 14(5): 104-106. shu

Inhibition of Dezincification of Brass

1.
Department of Environmental Science, Wuhan University, Wuhan 430072

Received Date: 8 December 1996
Available Online: 20 June 1997
Fund Project:

The inhibition of dezincification of brass by benzyltriphenyl phosphonium bromide(BPB), benzotriazole(BTA) and traces of arsenic in the alloy was investigated by chronoamperometry and measurements of positron lifetime spectra in chloride solution. The results show that BPB and BTA in the solution and arsenic in the alloy can obviously decrease the transient diffusion current densities of zinc dissolution and reduce the diffusion coefficient of zinc in brass by the order of one to two. The results are interpreted in terms of the (di)vacancy diffusion mechanism.
- brass dezincification,
- inhibition effect,
- arsenic,
- inhibitor
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