Hydrofluoric Acid
Hydrofluoric acid (17870)
Aqueous 70% Solution
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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.
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
- Performance Function : Feedstock
- Concentration : 30.00% water|70.00% HF acid
- 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
- pH : Acidic
- Solubility in Water : Completely miscible
- Melting Point/Range : -76 °C
- Boiling Point/Range : 65 °C (1,013 hPa)
- Vapor Pressure : 183 hPa at 21.1 °C(70.0 °F) hectopascal
- Physical Form : Liquid
- Flashpoint : Not applicable
- Density : 1.230 g/cm3 (20 °C)
- Color : Colorless
- Odor : Stinging
- 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.
- Ignition Temperature : Not applicable
- Chemical Stability : Stable under normal conditions
- Corrosivity : Corrosive to metals
- Harmonized System Code : 28111100
- Chemical Class : 8
- Packing Group : I
- Sub Class 1 : 6.1
- UN Number : 1790
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
In Person & Online Seminars
application/pdf 1.63 MB
6/18/2024
1.63 MB
Anhydrous and aqueous customers
application/pdf 3.46 MB
6/18/2024
3.46 MB
Safe production and transportation of HF
application/pdf 1.56 MB
6/18/2024
1.56 MB
Honeywell expertise can reduce risk and downtime
application/pdf 2.49 MB
6/18/2024
2.49 MB
Our Driver Teams Use Advanced Fleet Technology
application/pdf 762.71 KB
6/4/2024
762.71 KB
Data Sheet
Name
Description
File Size
Date
Size
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
In Person & Online Seminars
application/pdf 1.63 MB
6/18/2024
1.63 MB
Anhydrous and aqueous customers
application/pdf 3.46 MB
6/18/2024
3.46 MB
Safe production and transportation of HF
application/pdf 1.56 MB
6/18/2024
1.56 MB
Honeywell expertise can reduce risk and downtime
application/pdf 2.49 MB
6/18/2024
2.49 MB
Our Driver Teams Use Advanced Fleet Technology
application/pdf 762.71 KB
6/4/2024
762.71 KB
Technical Data Sheet
application/pdf 55.08 KB
3/21/2024
55.08 KB
Name
Description
File Size
Date
Size
