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Effect of hexavalent chromium on the environment and

Feb 15, 2021 · 1. Introduction. Chromium (Cr) is one of the common elements present inside the earth's mantle. It is the 17th most profuse element in the mantle layer of the earth's crust and was discovered by Vaughlin in 1797 (Avudainayagam et al., 2003).According to some researches (Babula et al., 2008; Alemu et al., 2018; Rowbotham et al., 2020), Cr mostly occurs as chromite (FeCr 2 O 4) in ultramafic Items where Division is "Chemical and Energy Engineering Jul 28, 2021 · A. Abu Bakar, Noor Fadzilah and Bakeri, Nor Asyiqin and Md. Salleh, Liza and Ahmad Perseni, Hartati and Hilmi, Mohammad Lokman and Abang Zaidel, Dayang Norulfairuz (2020) Extraction of swietenia macrophylla seed oil using supercritical carbon dioxide technique and its antioxidant, antidiabetic and toxicity properties. Chemical Engineering TransactionsVolume, 78 . pp. 523-528.

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