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Which of the following inhibitor is used for aluminum in the hydrogen peroxide environment?

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Which of the following inhibitor is used for aluminum in the hydrogen peroxide environment?

(a) 2% boron trifluoride

(b) Alkali metal nitrates

(c) Sodium silicate

(d) Benzoic acid

The question was posed to me in homework.

The question is from Corrosion Prevention topic in chapter Corrosion Prevention of Corrosion Engineering

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Right option is (b) Alkali metal nitrates

To elaborate: Inhibitors are the chemical compounds that decrease the corrosion rate of metal in a specific environment. Alkali metal nitrates are used as inhibitors for the aluminum metal in the hydrogen peroxide environment.

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