Patch test to trivalent chromium compounds, in molar concentrations equal to dichromate (0.009 M), caused no reactions in five chromatesensitive subjects. One patient showed a mild reaction with a relatively high concentration of chromium chloride (0.187 M). Positive reactions to trivalent chromium compounds applied after cellophane tape stripping of the skin were observed on three chromate-sensitive subjects tested. Factors relating to diffusion of chromium ions through skin and the concentrations of test solutions used in testing are discussed.
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M. H. Samitz (1966) studied this question.
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