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The Effect of Various Chromium Species on Wool Keratin

The effects of different chromium species and chroming processes on wool keratin have been studied. Infra-red studies revealed that in dichromate-treated wool the disulphides oxidise mainly to Bunte salt residues (S-thiosulphate). As expected, trivalent chromium treatments produce little or no oxidative degradation of wool keratin. These results were supported by fibre strength tests and SEM observations

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