name the agents used for the removal of impurities during the preparation of H2
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Hydrogen sulphide, sulphur dioxide, oxides of nitrogen, phosphine, arsine, carbon dioxide and water vapour are the impurities present in the hydrogen prepared in the laboratory.
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ABSTRACT OF THE DISCLOSURE Crude hydrogen gas containing carbon dioxide and hydrogen sulfide impurities is scrubbed with aqueous liquid triethanolamine solution to remove the impurities from the hydrogen gas.
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