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zafferZAFFER, n. The residuum of cobalt, after the sulphur, arsenic and other volatile matters have been expelled by calcination; so that it is a gray or dark gray oxyd of cobalt, mixed with a portion of silex. |
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zafferZAFFER, n. The residuum of cobalt, after the sulphur, arsenic and other volatile matters have been expelled by calcination; so that it is a gray or dark gray oxyd of cobalt, mixed with a portion of silex. |