They found that many people did not know enough about the perils of using dangerous chemicals such as nitric acid and mercury.

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The operators of the plant are also being prosecuted over a leak of concentrated nitric acid on 11 March last year, which injured two employees.

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Platinum: As a primarily industrial metal, platinum plays the role of catalyst in the processing of petroleum and chemicals such as nitric acid, fertilizers and synthetic fibers.

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Niteworks is made from L-arginine, an amino acid that helps produce nitric oxide.

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