[Jewelry making - Article 00035] - [Orchid] Titanium and niobium dust - toxic?

[Suzi]

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    When hand-working titanium and niobium sheet using emery paper dry
    and working about 9" from (unmasked) face, are the resultant fine
    particles (metal dust) toxic to inhale or ingest in any other way? 

Suzi


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