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-6
votes
1answer
191 views

How to extract pure silicon from wet yard dirt? [closed]

I am interested in making silicon wafers from ordinary dirt without spending any money. Is this possible? How would I do this?
2
votes
1answer
176 views

Can silica gel beads cause silicosis if crushed?

Can silica gel beads (which I believe are amorphous) when crushed to dust cause silicosis?
2
votes
1answer
582 views

How dangerous is Cobalt (II) Chloride used in silica gel balls?

I was looking up silica gel beads on wiki and noticed that some (and from experience most) are doped with a colouring agent to indicate that they have absorbed all that they can. The wiki page says ...
2
votes
0answers
124 views

How is silica bead bonded into polystyrene?

What kind of bonds silica bead forms with polystyrene? Silica is now as ~100 $\mu$m spherical particles in bulk polystyrene that is made by melting. How can I bond the silica particles more ...