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What kind of refractory metals can stand Hydrofluoric Acid?
2003
Regarding Metal which can stand HF - Hydrofluoric Acid, we have tried Tantalum as well as Niobium and both are eaten away very soon. We wish to boil HF in a closed metal vessel at a temperature of 250 / 300 °C. Is there any other refractory metals or rare metals for alternative ?
Kindly please give us a tip, thanks.
Xiong PeiminNANCHANG HI-TECH DEVELOPMENT ZONE - Nanchang, Jiangxi, China
First of two simultaneous responses --
To my knowledge, gold is the metal of choice for contact with HF but I don't know its behaviour at your operating temperature. Why do you need it to be a refractory metal, your temperature doesn't seem too high?
Guillermo MarrufoMonterrey, NL, Mexico
2003
Second of two simultaneous responses --
NONE
Jon Quirt- Minneapolis, Minnesota
2003
Actually, N.C. 1047 or 1097(?) is a metal used for nose cones on rockets and is 100 % dense silicon metal. It will probably resist anything at any temperature.
Jeff Swayze- Kelowna, B.C., Canada
2003
Be aware that silicon dissolves very fast in HF environments. NC 1047 can resist high temperature in other environments.
Ling Hao- Grand Rapids, Michigan
2003
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