Fluorides
Hexafluorozirconic acid (01745)
non-chromium surface passivation, assay 44 - 46%
Overview
Common corrosion inhibitor on steel and other metal surfaces; replacement of phosphates for the treatment of zinc-galvanized and cold –roll steel; non-chromium surface passivation; active component in thin-film coatings
Specifications
General Information
- CAS Number
- 12021-95-3
- Linear Formula
- H2ZrF6
Physical Properties
- pH
- < 1.0 (20 °C)
- Density
- 1.55 g/cm3 (20 °C)
- Odor
- Stinging, Irritating, Strong
- Color
- Colorless
- Boiling Point/Range
- 100 °C (1,013 hPa)
- Physical Form
- Crystalline powder
- Vapor Pressure
- similar to water hectopascal
- Melting Point/Range
- No data available
Safety Information
- Corrosivity
- Corrosive to metals
- Incompatible Materials
- Strong oxidizing agents, Strong acids, Glass and silicate-containing materials are attacked, Gives off hydrogen by reaction with metals
- Thermal Decomposition
- No decomposition if used as directed.
- Chemical Stability
- No decomposition if stored and applied as directed. Stable under recommended storage conditions.
- Flammability
- Not applicable
- Self Ignition
- Not auto-flammable
International Transportation
- Chemical Class
- 8
- Packing Group
- II
- UN Number
- 2922
- Sub Class 1
- 6.1
- Harmonized System Code
- 2811196190
General Information
- CAS Number
- 12021-95-3
- Linear Formula
- H2ZrF6
Physical Properties
- pH
- < 1.0 (20 °C)
- Density
- 1.55 g/cm3 (20 °C)
- Odor
- Stinging, Irritating, Strong
- Color
- Colorless
- Boiling Point/Range
- 100 °C (1,013 hPa)
- Physical Form
- Crystalline powder
- Vapor Pressure
- similar to water hectopascal
- Melting Point/Range
- No data available
Safety Information
- Corrosivity
- Corrosive to metals
- Incompatible Materials
- Strong oxidizing agents, Strong acids, Glass and silicate-containing materials are attacked, Gives off hydrogen by reaction with metals
- Thermal Decomposition
- No decomposition if used as directed.
- Chemical Stability
- No decomposition if stored and applied as directed. Stable under recommended storage conditions.
- Flammability
- Not applicable
- Self Ignition
- Not auto-flammable
International Transportation
- Chemical Class
- 8
- Packing Group
- II
- UN Number
- 2922
- Sub Class 1
- 6.1
- Harmonized System Code
- 2811196190
- CAS Number : 12021-95-3
- Linear Formula : H2ZrF6
- pH : < 1.0 (20 °C)
- Density : 1.55 g/cm3 (20 °C)
- Odor : Stinging, Irritating, Strong
- Color : Colorless
- Boiling Point/Range : 100 °C (1,013 hPa)
- Physical Form : Crystalline powder
- Vapor Pressure : similar to water hectopascal
- Melting Point/Range : No data available
- Corrosivity : Corrosive to metals
- Incompatible Materials : Strong oxidizing agents, Strong acids, Glass and silicate-containing materials are attacked, Gives off hydrogen by reaction with metals
- Thermal Decomposition : No decomposition if used as directed.
- Chemical Stability : No decomposition if stored and applied as directed. Stable under recommended storage conditions.
- Flammability : Not applicable
- Self Ignition : Not auto-flammable
- Chemical Class : 8
- Packing Group : II
- UN Number : 2922
- Sub Class 1 : 6.1
- Harmonized System Code : 2811196190
Property
Value
assay
44 - 46 %
assay of Zr
19.5 - 20.5 %
assay of total F
25.5 - 28.5 %
density (D 20/4)
1.50 - 1.54
free acid (as HF)
Max. 0.5 %
arsenic (As)
Max. 0.005 %
chromium (Cr)
Max. 0.005 %
copper (Cu)
Max. 0.005 %
iron (Fe)
Max. 0.05 %
nickel (Ni)
Max. 0.01 %
lead (Pb)
Max. 0.005 %
chloride (Cl)
Max. 0.01 %
sulfate (SO4)
Max. 0.03 %
