Oils which contain sulphur-compounds are subjected to a special process of refining in which cupric oxide or litharge is employed as a desulphurizing agent. [Please select]
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Nor is the behaviour of a rubber-sulphur mixing a sure guide to the behaviour of one containing other ingredients, such as litharge. [Please select]
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Thus, two samples vulcanised satisfactorily when mixed with sulphur only, but one of them gave unsatisfactory results in the presence of litharge. [Please select]
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This applies particularly to litharge (oxide of lead), to which reference has already been made. [Please select]
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The increase in weight in the litharge, minus the weight of substance not volatilisable from 2 grms. [Please select]
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Red lead, an oxide, is a pigment; litharge, also an oxide, is used for glazing the cheaper kinds of pottery. [Please select]
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