Hydrofluoric Acid
Hydrofluoric Acid (17870)
70%, Puranal
Overview
Specifications
General Information
- Grade
- SemEG
- CAS Number
- 7664-39-3
Physical Properties
- Flashpoint
- Not applicable
- Color
- Colorless
- pH
- Acidic
- Density
- 1.230 g/cm3 (20 °C)
- Vapor Pressure
- 183 hPa (21.1 °C) hectopascal
- Physical Form
- Liquid
- Odor
- Stinging
- Boiling Point/Range
- 65 °C (1,013 hPa)
- Melting Point/Range
- -76 °C
Safety Information
- Thermal Decomposition
- Fire or intense heat may cause violent rupture of packages.
- Chemical Stability
- Stable under normal conditions.
- Incompatible Materials
- HF contact with glass, concrete and other silicon bearing materials will yield silicon tetrafluoride, Glass and silicate-containing materials
- Corrosivity
- Corrosive to metals
- Ignition Temperature
- Not applicable
International Transportation
- Sub Class 1
- 6.1
- Harmonized System Code
- 28111100
- Chemical Class
- 8
- UN Number
- 1790
- Packing Group
- I
General Information
- Grade
- SemEG
- CAS Number
- 7664-39-3
Physical Properties
- Flashpoint
- Not applicable
- Color
- Colorless
- pH
- Acidic
- Density
- 1.230 g/cm3 (20 °C)
- Vapor Pressure
- 183 hPa (21.1 °C) hectopascal
- Physical Form
- Liquid
- Odor
- Stinging
- Boiling Point/Range
- 65 °C (1,013 hPa)
- Melting Point/Range
- -76 °C
Safety Information
- Thermal Decomposition
- Fire or intense heat may cause violent rupture of packages.
- Chemical Stability
- Stable under normal conditions.
- Incompatible Materials
- HF contact with glass, concrete and other silicon bearing materials will yield silicon tetrafluoride, Glass and silicate-containing materials
- Corrosivity
- Corrosive to metals
- Ignition Temperature
- Not applicable
International Transportation
- Sub Class 1
- 6.1
- Harmonized System Code
- 28111100
- Chemical Class
- 8
- UN Number
- 1790
- Packing Group
- I
- Grade : SemEG
- CAS Number : 7664-39-3
- Flashpoint : Not applicable
- Color : Colorless
- pH : Acidic
- Density : 1.230 g/cm3 (20 °C)
- Vapor Pressure : 183 hPa (21.1 °C) hectopascal
- Physical Form : Liquid
- Odor : Stinging
- Boiling Point/Range : 65 °C (1,013 hPa)
- Melting Point/Range : -76 °C
- Thermal Decomposition : Fire or intense heat may cause violent rupture of packages.
- Chemical Stability : Stable under normal conditions.
- Incompatible Materials : HF contact with glass, concrete and other silicon bearing materials will yield silicon tetrafluoride, Glass and silicate-containing materials
- Corrosivity : Corrosive to metals
- Ignition Temperature : Not applicable
- Sub Class 1 : 6.1
- Harmonized System Code : 28111100
- Chemical Class : 8
- UN Number : 1790
- Packing Group : I
Property
Value
assay
71 - 72 %
residue on ignition (SO4)
Max. 5 ppm
silver (Ag)
Max. 0.02 ppm
aluminium (Al)
Max. 0.05 ppm
arsenic (As)
Max. 0.05 ppm
gold (Au)
Max. 0.02 ppm
boron (B)
Max. 0.05 ppm
barium (Ba)
Max. 0.1 ppm
beryllium (Be)
Max. 0.01 ppm
bismuth (Bi)
Max. 0.02 ppm
calcium (Ca)
Max. 0.5 ppm
cadmium (Cd)
Max. 0.01 ppm
cobalt (Co)
Max. 0.01 ppm
chromium (Cr)
Max. 0.01 ppm
copper (Cu)
Max. 0.01 ppm
iron (Fe)
Max. 0.1 ppm
gallium (Ga)
Max. 0.02 ppm
indium (In)
Max. 0.02 ppm
potassium (K)
Max. 0.1 ppm
lithium (Li)
Max. 0.02 ppm
magnesium (Mg)
Max. 0.1 ppm
manganese (Mn)
Max. 0.01 ppm
molybdenum (Mo)
Max. 0.01 ppm
sodium (Na)
Max. 0.2 ppm
nickel (Ni)
Max. 0.01 ppm
lead (Pb)
Max. 0.02 ppm
platinum (Pt)
Max. 0.02 ppm
antimony (Sb)
Max. 0.01 ppm
tin (Sn)
Max. 0.02 ppm
strontium (Sr)
Max. 0.02 ppm
titanium (Ti)
Max. 0.1 ppm
thallium (Tl)
Max. 0.02 ppm
vanadium (V)
Max. 0.01 ppm
zinc (Zn)
Max. 0.05 ppm
zirconium (Zr)
Max. 0.01 ppm
chloride (Cl)
Max. 5 ppm
hexafluorosilic acid(H2SiF6)
Max. 50 ppm
nitrate (NO3)
Max. 3 ppm
phosphate (PO4)
Max. 0.5 ppm
sulfate (SO4)
Max. 1 ppm
sulfite (SO3)
Max. 2 ppm
