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Hydrogen Fluoride (HF)

Hydrofluoric acid

Aqueous 49% Solution

Overview
Our 49% is a clear, colorless, corrosive liquid with a sharp, stinging odor. It is non-fuming,

The 49% solution is highly hazardous and needs to be handled and used with rigorous safety precautions. Liquid exposure can cause severe burns to all parts of the body. Specialized medical treatment is required for any exposure to 49% HF.
Specifications

General Information

  • Application
    • Chemical Derivatives
    • Chemical Milling
    • Glass Etching/Frosting
    • Metal Pickling
    • Quartz Purification
    • Rare Metal Processing
  • CAS Number
    • Hydrofluoric Acid – 7664-39-3
    • Water – 7732-18-5
  • Concentration
    • 49.00% acid
    • 51.00% water
  • Grade
    • Aqueous 49% Solution
  • Performance Function
    • Feedstock
  • Synonyms
    • Aqueous HF
    • HF
    • HF Acid

Physical Properties

  • Boiling Point/Range
    • 105 °C at 1,013 hPa
  • Chemical Composition
    • 49% HF in H2O by weight
  • Color
    • Colorless
  • Density
    • 1.17 g/cm3 at 20 °C
  • Flashpoint
    • Not flammable
  • Formula
    • HF
  • Melting Point/Range
    • -35 °C
  • Odor
    • Sharp stinging
  • pH
    • 3.4
    • Acidic
  • Physical Form
    • Liquid
  • Solubility in Water
    • Completely miscible
  • Vapor Pressure
    • 101 hPa at 50°C (122°F)

Safety Information

  • Chemical Stability
    • Stable under normal conditions
  • Corrosivity
    • Corrosive to metals
  • Evaporation Rate
    • Not applicable
  • Ignition Temperature
    • Not applicable
  • Incompatible Materials
    • See SDS

International Transportation

  • Chemical Class
    • 8 (6.1)
  • Packing Group
    • II
  • UN Number
    • 1790

General Information

  • Application
    • Chemical Derivatives
    • Chemical Milling
    • Glass Etching/Frosting
    • Metal Pickling
    • Quartz Purification
    • Rare Metal Processing
  • CAS Number
    • Hydrofluoric Acid – 7664-39-3
    • Water – 7732-18-5
  • Concentration
    • 49.00% acid
    • 51.00% water
  • Grade
    • Aqueous 49% Solution
  • Performance Function
    • Feedstock
  • Synonyms
    • Aqueous HF
    • HF
    • HF Acid

Physical Properties

  • Boiling Point/Range
    • 105 °C at 1,013 hPa
  • Chemical Composition
    • 49% HF in H2O by weight
  • Color
    • Colorless
  • Density
    • 1.17 g/cm3 at 20 °C
  • Flashpoint
    • Not flammable
  • Formula
    • HF
  • Melting Point/Range
    • -35 °C
  • Odor
    • Sharp stinging
  • pH
    • 3.4
    • Acidic
  • Physical Form
    • Liquid
  • Solubility in Water
    • Completely miscible
  • Vapor Pressure
    • 101 hPa at 50°C (122°F)

Safety Information

  • Chemical Stability
    • Stable under normal conditions
  • Corrosivity
    • Corrosive to metals
  • Evaporation Rate
    • Not applicable
  • Ignition Temperature
    • Not applicable
  • Incompatible Materials
    • See SDS

International Transportation

  • Chemical Class
    • 8 (6.1)
  • Packing Group
    • II
  • UN Number
    • 1790
  • Synonyms : Aqueous HF|HF|HF Acid
  • Grade : Aqueous 49% Solution
  • Application : Chemical Derivatives|Chemical Milling|Glass Etching/Frosting|Metal Pickling|Quartz Purification|Rare Metal Processing
  • CAS Number : Hydrofluoric Acid – 7664-39-3|Water – 7732-18-5
  • Color : Colorless
  • Solubility in Water : Completely miscible
  • Melting Point/Range : -35 °C
  • Physical Form : Liquid
  • Chemical Composition : 49% HF in H2O by weight
  • pH : 3.4|Acidic
  • Density : 1.17 g/cm3 at 20 °C
  • Vapor Pressure : 101 hPa at 50°C (122°F)
  • Flashpoint : Not flammable
  • Boiling Point/Range : 105 °C at 1,013 hPa
  • Odor : Sharp stinging
  • Formula : HF
  • Ignition Temperature : Not applicable
  • Corrosivity : Corrosive to metals
  • Evaporation Rate : Not applicable
  • Chemical Stability : Stable under normal conditions
  • Incompatible Materials : See SDS
  • Packing Group : II
  • UN Number : 1790
  • Chemical Class : 8 (6.1)
  • Concentration : 49.00% acid|51.00% water
  • Performance Function : Feedstock
Technical Note
Name
Description
File Size
Date
Size
Typical Alkaline Material (Bases)
application/pdf 89.25 KB
3/21/2024
89.25 KB
Brochure
Name
Description
File Size
Date
Size
Honeywell expertise can help reduce the stress of transportation emergencies by supporting remediation efforts
application/pdf 3.3 MB
12/6/2023
3.3 MB
Performance you need. Quality you can count on.
application/pdf 1.65 MB
12/6/2023
1.65 MB
Honeywell expertise can reduce risk and downtime
application/pdf 2.41 MB
12/6/2023
2.41 MB
Honeywell is dedicated to the safe production and transportation of hydrofluoric acid (HF)
application/pdf 1.56 MB
12/6/2023
1.56 MB
Training
application/pdf 2.77 MB
4/3/2024
2.77 MB
HF acid delivery you can rely on
application/pdf 295.58 KB
12/6/2023
295.58 KB
In-Person & Online Seminars
application/pdf 1.63 MB
12/6/2023
1.63 MB
Hazmat Training
application/pdf 3.46 MB
4/3/2024
3.46 MB
Data Sheet
Name
Description
File Size
Date
Size
NA MSDS
application/pdf 302.18 KB
4/2/2024
302.18 KB
Technical Data Sheet
application/pdf 55.67 KB
3/22/2024
55.67 KB
Name
Description
File Size
Date
Size
Typical Alkaline Material (Bases)
application/pdf 89.25 KB
3/21/2024
89.25 KB
NA MSDS
application/pdf 302.18 KB
4/2/2024
302.18 KB
Honeywell expertise can help reduce the stress of transportation emergencies by supporting remediation efforts
application/pdf 3.3 MB
12/6/2023
3.3 MB
Technical Data Sheet
application/pdf 55.67 KB
3/22/2024
55.67 KB
Performance you need. Quality you can count on.
application/pdf 1.65 MB
12/6/2023
1.65 MB
Honeywell expertise can reduce risk and downtime
application/pdf 2.41 MB
12/6/2023
2.41 MB
Honeywell is dedicated to the safe production and transportation of hydrofluoric acid (HF)
application/pdf 1.56 MB
12/6/2023
1.56 MB
Training
application/pdf 2.77 MB
4/3/2024
2.77 MB
HF acid delivery you can rely on
application/pdf 295.58 KB
12/6/2023
295.58 KB
In-Person & Online Seminars
application/pdf 1.63 MB
12/6/2023
1.63 MB
Hazmat Training
application/pdf 3.46 MB
4/3/2024
3.46 MB
Name
Description
File Size
Date
Size
Typical Alkaline Material (Bases)
89.25 KB
3/21/2024
Honeywell expertise can help reduce the stress of transportation emergencies by supporting remediation efforts
3.3 MB
12/6/2023
Performance you need. Quality you can count on.
1.65 MB
12/6/2023
Honeywell expertise can reduce risk and downtime
2.41 MB
12/6/2023
Honeywell is dedicated to the safe production and transportation of hydrofluoric acid (HF)
1.56 MB
12/6/2023
Training
2.77 MB
4/3/2024
HF acid delivery you can rely on
295.58 KB
12/6/2023
In-Person & Online Seminars
1.63 MB
12/6/2023
Hazmat Training
3.46 MB
4/3/2024
NA MSDS
302.18 KB
4/2/2024
Technical Data Sheet
55.67 KB
3/22/2024