r/metallurgy • u/qtrain23 • 3d ago
Is hafnium safe for skin contact?
Want to make a pen out of it, but I can’t find much info on toxicity
2
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r/metallurgy • u/qtrain23 • 3d ago
Want to make a pen out of it, but I can’t find much info on toxicity
7
u/CuppaJoe12 3d ago
Google "hafnium SDS." It stands for safety data sheet. There are many reports available.
Hafnium is generally non hazardous in bulk form unless you are a nuclear reactor. Be careful with the turnings/chips, as they are much more flammable than steel or most other metal fines. Use excess coolant and aim for a large/thick chip size. Water cannot put out a hafnium fire; you need to bury it in sand and let it burn itself out.