Hi there,
Thank you very much guys, ur information was
really helpful for my experiment about the etching
chemicals. U know what, if we could add some
chromic/pottasium alum to the mixture of HCl and H2O2
it may increases the etching speed. Anyone knows the
chemistry explanation for that.
The other thing is i have heard about a
powder which can prevent that clorine gas when u do
the etching. If anyone knows that what is that powder
and it contains pls let me know.
Cheers,
Udara
________________________________________________________________________
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your friends today! Download Messenger Now
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Thank you very much guys, ur information was
really helpful for my experiment about the etching
chemicals. U know what, if we could add some
chromic/pottasium alum to the mixture of HCl and H2O2
it may increases the etching speed. Anyone knows the
chemistry explanation for that.
The other thing is i have heard about a
powder which can prevent that clorine gas when u do
the etching. If anyone knows that what is that powder
and it contains pls let me know.
Cheers,
Udara
________________________________________________________________________
Yahoo! Messenger - Communicate instantly..."Ping"
your friends today! Download Messenger Now
http://uk.messenger.yahoo.com/download/index.html