/content/advancedmaterials/us/en/search-results.html

Hydrofluoric Acid

Hydrofluoric acid (17870)

Aqueous 70% Solution

Overview
Our 70% HF solution is an aqueous grade that is a clear, colorless, corrosive fuming liquid with a sharp, stinging odor. It is 100% soluble in water and is not flammable.

70% HF is highly hazardous and needs to be handled and used with rigorous safety precautions. It can cause severe burns to all parts of the body in liquid and vapor forms. Specialized medical treatment is required for any exposure to 70% 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
    • 30.00% water
    • 70.00% HF acid
  • Grade
    • Aqueous 70% Solution
  • Performance Function
    • Feedstock
  • Synonyms
    • HF
    • HF Acid

Physical Properties

  • Boiling Point/Range
    • 65 °C (1,013 hPa)
  • Color
    • Colorless
  • Density
    • 1.230 g/cm3 (20 °C)
  • Flashpoint
    • Not applicable
  • Melting Point/Range
    • -76 °C
  • Odor
    • Stinging
  • pH
    • Acidic
  • Physical Form
    • Liquid
  • Solubility in Water
    • Completely miscible
  • Vapor Pressure
    • 183 hPa at 21.1 °C(70.0 °F) hectopascal

Safety Information

  • Chemical Stability
    • Stable under normal conditions
  • Corrosivity
    • Corrosive to metals
  • Ignition Temperature
    • Not applicable
  • Incompatible Materials
    • Contact with alkalies and some oxides cause strong violent exothermic reactions
    • Contact with metals will yield hydrogen gas, a fire and explosive reactive hazard
    • Glass and silicate-containing materials are attacked
    • HF contact with carbonates, sulfides and cyanides yield toxic gases such as carbon dioxide, hydrogen sulfide and hydrogen cyanide
    • HF contact with glass, concrete and other silicon bearing
    • On dilution or dissolving in water, considerable heating always occurs
    • Pressure buildup from this process has been known to rupture glass containers
    • When diluting, add acids to water, never the other way around
  • Thermal Decomposition
    • Fire or intense heat may cause violent rupture of packages.

International Transportation

  • Chemical Class
    • 8
  • Harmonized System Code
    • 28111100
  • Packing Group
    • I
  • Sub Class 1
    • 6.1
  • 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
    • 30.00% water
    • 70.00% HF acid
  • Grade
    • Aqueous 70% Solution
  • Performance Function
    • Feedstock
  • Synonyms
    • HF
    • HF Acid

Physical Properties

  • Boiling Point/Range
    • 65 °C (1,013 hPa)
  • Color
    • Colorless
  • Density
    • 1.230 g/cm3 (20 °C)
  • Flashpoint
    • Not applicable
  • Melting Point/Range
    • -76 °C
  • Odor
    • Stinging
  • pH
    • Acidic
  • Physical Form
    • Liquid
  • Solubility in Water
    • Completely miscible
  • Vapor Pressure
    • 183 hPa at 21.1 °C(70.0 °F) hectopascal

Safety Information

  • Chemical Stability
    • Stable under normal conditions
  • Corrosivity
    • Corrosive to metals
  • Ignition Temperature
    • Not applicable
  • Incompatible Materials
    • Contact with alkalies and some oxides cause strong violent exothermic reactions
    • Contact with metals will yield hydrogen gas, a fire and explosive reactive hazard
    • Glass and silicate-containing materials are attacked
    • HF contact with carbonates, sulfides and cyanides yield toxic gases such as carbon dioxide, hydrogen sulfide and hydrogen cyanide
    • HF contact with glass, concrete and other silicon bearing
    • On dilution or dissolving in water, considerable heating always occurs
    • Pressure buildup from this process has been known to rupture glass containers
    • When diluting, add acids to water, never the other way around
  • Thermal Decomposition
    • Fire or intense heat may cause violent rupture of packages.

International Transportation

  • Chemical Class
    • 8
  • Harmonized System Code
    • 28111100
  • Packing Group
    • I
  • Sub Class 1
    • 6.1
  • UN Number
    • 1790
  • 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
  • Synonyms : HF|HF Acid
  • Grade : Aqueous 70% Solution
  • Physical Form : Liquid
  • Boiling Point/Range : 65 °C (1,013 hPa)
  • Solubility in Water : Completely miscible
  • Color : Colorless
  • Odor : Stinging
  • Melting Point/Range : -76 °C
  • Vapor Pressure : 183 hPa at 21.1 °C(70.0 °F) hectopascal
  • pH : Acidic
  • Flashpoint : Not applicable
  • Density : 1.230 g/cm3 (20 °C)
  • Chemical Stability : Stable under normal conditions
  • Thermal Decomposition : Fire or intense heat may cause violent rupture of packages.
  • Corrosivity : Corrosive to metals
  • Incompatible Materials : Contact with alkalies and some oxides cause strong violent exothermic reactions|Contact with metals will yield hydrogen gas, a fire and explosive reactive hazard|Glass and silicate-containing materials are attacked|HF contact with carbonates, sulfides and cyanides yield toxic gases such as carbon dioxide, hydrogen sulfide and hydrogen cyanide|HF contact with glass, concrete and other silicon bearing|On dilution or dissolving in water, considerable heating always occurs|Pressure buildup from this process has been known to rupture glass containers|When diluting, add acids to water, never the other way around
  • Ignition Temperature : Not applicable
  • Packing Group : I
  • Sub Class 1 : 6.1
  • UN Number : 1790
  • Harmonized System Code : 28111100
  • Chemical Class : 8
  • Concentration : 30.00% water|70.00% HF acid
  • 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
Our Driver Teams Use Advanced Fleet Technology
application/pdf 762.71 KB
6/4/2024
762.71 KB
Training Guide
application/pdf 11.68 MB
6/3/2024
11.68 MB
In-Person and Online Seminars
application/pdf 18.36 MB
6/3/2024
18.36 MB
Safe production and transportation
application/pdf 3.66 MB
6/3/2024
3.66 MB
Training Guide
application/pdf 8.8 MB
6/3/2024
8.8 MB
Honeywell expertise can help reduce the stress of transportation emergencies by supporting remediation efforts
application/pdf 45.38 MB
6/3/2024
45.38 MB
Reduce risk and downtime
application/pdf 38.95 MB
6/3/2024
38.95 MB
HF Hazmat Training
application/pdf 8.6 MB
6/3/2024
8.6 MB
Product Overview
application/pdf 2.76 MB
6/3/2024
2.76 MB
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
Data Sheet
Name
Description
File Size
Date
Size
NA MSDS
application/pdf 284.37 KB
4/2/2024
284.37 KB
Technical Data Sheet
application/pdf 55.08 KB
3/21/2024
55.08 KB
Name
Description
File Size
Date
Size
Typical Alkaline Material (Bases)
application/pdf 89.25 KB
3/21/2024
89.25 KB
Our Driver Teams Use Advanced Fleet Technology
application/pdf 762.71 KB
6/4/2024
762.71 KB
Training Guide
application/pdf 11.68 MB
6/3/2024
11.68 MB
In-Person and Online Seminars
application/pdf 18.36 MB
6/3/2024
18.36 MB
Safe production and transportation
application/pdf 3.66 MB
6/3/2024
3.66 MB
Training Guide
application/pdf 8.8 MB
6/3/2024
8.8 MB
Honeywell expertise can help reduce the stress of transportation emergencies by supporting remediation efforts
application/pdf 45.38 MB
6/3/2024
45.38 MB
Reduce risk and downtime
application/pdf 38.95 MB
6/3/2024
38.95 MB
HF Hazmat Training
application/pdf 8.6 MB
6/3/2024
8.6 MB
Product Overview
application/pdf 2.76 MB
6/3/2024
2.76 MB
NA MSDS
application/pdf 284.37 KB
4/2/2024
284.37 KB
Technical Data Sheet
application/pdf 55.08 KB
3/21/2024
55.08 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
Name
Description
File Size
Date
Size
Typical Alkaline Material (Bases)
89.25 KB
3/21/2024
Our Driver Teams Use Advanced Fleet Technology
762.71 KB
6/4/2024
Training Guide
11.68 MB
6/3/2024
In-Person and Online Seminars
18.36 MB
6/3/2024
Safe production and transportation
3.66 MB
6/3/2024
Training Guide
8.8 MB
6/3/2024
Honeywell expertise can help reduce the stress of transportation emergencies by supporting remediation efforts
45.38 MB
6/3/2024
Reduce risk and downtime
38.95 MB
6/3/2024
HF Hazmat Training
8.6 MB
6/3/2024
Product Overview
2.76 MB
6/3/2024
Honeywell expertise can help reduce the stress of transportation emergencies by supporting remediation efforts
3.3 MB
12/6/2023
NA MSDS
284.37 KB
4/2/2024
Technical Data Sheet
55.08 KB
3/21/2024