Hydrogen Fluoride
HF
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General Characteristics Health Hazards Material Recommendations
A colorless, nonflammable, liquefied and corrosive gas with a penetrating odor. Highly Toxic. Attacks mucous membranes and eyes. Dry Gas: steel. ; Moist Gas: Monel valves, nickel.
TLV-TWA Flammable Limits DOT Class / Label
3 ppm Nonflammable 8 / Corrosive Poison
Molecular Weight Specific Gravity Specific Volume
20.0 1.858 @ 77° F 19.2 cu.ft./lb @ 70° F
CGA Valve Outlet CAS Registry No. UN Number
670 7664-39-3 1052
National Stock Number (NSN) Applicable to Hydrogen Fluoride MIL Specs/ Fed Specs
MSDS for Hydrogen Fluoride


Grade
Part #
Purity Minimum Cylinder
Size
Volume
Lbs.
Pressure
@ 70 F
Comments
Anhydrous
431900
99.8% Min.
Liquid Phase
056
007
LBS
100
9
3.5
0.9
0.9
0.9

None


Uses: Hydrogen Fluoride - HF - is used to prepare fluorides, to manufacture fluorine, as a catalyst in isomerization, condensation, dehydration and hydrolysis reactions. It is also used in the etching and polishing of glass, andin the manufacture of aluminum fluoride.