Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Hydrofluosilicic (Fluosilicic) Acid as Activator for Titanium
2003
Dear Friends,
I understand that titanium al. can be activated by using Hydrofluosilicic Acid (Fluosilicic Acid). CAS#: 16961-83-4 Can anyone tell me the procedure?
1). What concentration of Hydrofluosilicic Acid (HA)?
2). Does the Hydrofluosilicic Acid require any special purity?
3). Does the HA require any additional buffers or additives, or is the HA sufficient?
4). If additives are required, what are they and who supplies them?
My profound thanks for assistance with this question!
Most cordially,
Aerospace - Valencia, California, USA
Hydrofluoric Acid, HF, is the more common fluoride containing acid in aerospace because of cost. Some operations use Nitric Acid that has ammonium bi fluoride added. This is considerably safer than using HF.
James Watts- Navarre, Florida
2003
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