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DESCRIPTION:
Hexafluorozirconium acid 45 % is used commonly in industrial settings as a precursor material for the manufacture of films used to coat ceramics, to synthesize glass used in prescription eyeglasses and as a common corrosion inhibitor on steel and other metal surfaces.
CAS : 12021-95-3
EC (EINECS) Number: 234-666-0
Chemical Name: Dihydrogen hexafluorozirconiumdiuide aqueous solution
SYNONYMS:
Hexafluorozirconic acid solution, Dihydrogen hexafluorozirconate, 45% w/w aq., Zirconate(2-), hexafluoro-, dihydrogen, Fluorozirconic acid
Hexafluorozirconium acid 45 % is a colorless, odorless liquid mixture, completely soluble in water and stable under recommended storage conditions.
Hexafluorozirconic Acid 45 % is corrosive to metals.
Hexafluorozirconic Acid 45 % is incompatible with strong acids, bases, and should be stored away from metals as contact with metals can result in the release of hydrogen gas that can be explosive.
This mixture is predominantly composed of 45% dihydrogen hexafluorozirconate(2-), 54.5% water and hydrofluoric acid comprising approximately 0.5%.
Given its major uses, the primary exposure to this chemical occurs in the industrial setting.
For workers, good manufacturing and industrial hygiene practices should be followed to prevent or reduce exposure.
This mixture is toxic if swallowed, inhaled, and can cause severe skin burns and eye damage. Ingestion and significant inhalation exposure to this product can release fluoride ions that can cause severe systemic effects including hypocalcemia, hypomagnesemia and hyperkalemia resulting in electrolyte imbalance and cardiac arrhythmias.
This product is not known to be genotoxic or cause reproductive or developmental harm.
This mixture is not anticipated to be a carcinogen in humans based on studies conducted by NTP, IARC, or OSHA.
The aquatic toxicity and ecological effects of this product are not known.
Hexafluorozirconium acid 45 % is inorganic and, therefore, biodegradability data is not relevant.
However, discharge into the environment should be avoided and this product should not be flushed into surface water or sanitary sewer systems.
Instead, spillages should first be neutralized with lime or sodium hydroxide solution and the spilled material collected and placed into an appropriate container for proper disposal to an approved waste disposal plant.
Dihydrogen hexafluorozirconate is used in manufacturing of optical glass and fluozirconate.
Hexafluorozirconic Acid 45 % acts as a precursor to zirconium dioxide ceramic thin films.
Further, Hexafluorozirconic Acid 45 % is used for surface pretreatments on steel to prevent corrosion.
In addition to this, Hexafluorozirconic Acid 45 % is used in the production of the atomic energy industry, advanced electrical materials and refractories.
PROPERTIES:
CAS Number
12021-95-3
Concentration
Dihydrogen hexafluorozirconate( 2-) - >= 25 % to < 50 %
Hydrogen fluoride (Impurity) - <= 0.5 %
EC Number
2006/12/EC; 2008/98/EEC
Linear Formula
H2ZrF6
Synonyms
zirconium(IV) fluoride dihydrofluoride
Physical Properties
Boiling Point/Range
100 °C (1,013 hPa)
Chemical Composition
Dihydrogen hexafluorozirconate( 2-)
Hydrogen fluoride (Impurity)
Color
Colorless
Density
1.55 g/cm3 (20 °C)
Flashpoint
Not applicable
Melting Point/Range
No data available
Odor
Stinging, Irritating, Strong
Partition Coefficient
No data available
pH
< 1.0 (20 °C)
Phosphorescence Color
Colourless to Blue Green
Greenish-Blue
Physical Form
Crystalline powder
Solubility in Water
Completely miscible
Vapor Pressure
similar to water hectopascal
CAS Number: 12021-95-3 (Mixture of 7732-18-5(~55%), 12021-95-3 (45%), and 7664-39-3 (0.5%))
CAS Name: Hexafluorozirconic acid
EC (EINECS) Number: 234-666-0 (for CAS #12021-95-3)
Color Colorless
Density 1.51 g/mL
Quantity 2 kg
UN Number UN2922
Solubility Information Miscible with acid-base solutions.
Formula Weight 207.22
Concentration or Composition (by Analyte or Components) 45% w/w aq. soln.
Physical Form Liquid
Chemical Name or Material Dihydrogen hexafluorozirconate
CAS 12021-95-3
Molecular Formula F6H2Zr
Molecular Weight (g/mol) 207.23
MDL Number MFCD00082965
InChI Key PZFQYBOZXGWNAM-UHFFFAOYSA-HShow Less
Synonym Hexafluorozirconic acid; Hydrogen hexafluorozirconate
SAFETY INFORMATION ABOUT HEXAFLUOROZIRCONIC ACID 45 %
First aid measures:
Description of first aid measures:
General advice:
Consult a physician.
Show this safety data sheet to the doctor in attendance.
Move out of dangerous area:
If inhaled:
If breathed in, move person into fresh air.
If not breathing, give artificial respiration.
Consult a physician.
In case of skin contact:
Take off contaminated clothing and shoes immediately.
Wash off with soap and plenty of water.
Consult a physician.
In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Continue rinsing eyes during transport to hospital.
If swallowed:
Do NOT induce vomiting.
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
Consult a physician.
Firefighting measures:
Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas
Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental release measures:
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment.
Avoid breathing vapours, mist or gas.
Evacuate personnel to safe areas.
Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up:
Soak up with inert absorbent material and dispose of as hazardous waste.
Keep in suitable, closed containers for disposal.
Handling and storage:
Precautions for safe handling:
Avoid inhalation of vapour or mist.
Conditions for safe storage, including any incompatibilities:
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials
Exposure controls/personal protection:
Control parameters:
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
Exposure controls:
Appropriate engineering controls:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
Personal protective equipment:
Eye/face protection:
Tightly fitting safety goggles.
Faceshield (8-inch minimum).
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection:
Handle with gloves.
Gloves must be inspected prior to use.
Use proper glove
removal technique (without touching glove's outer surface) to avoid skin contact with this product.
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
It should not be construed as offering an approval for any specific use scenario.
Body Protection:
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection:
Where risk assessment shows air-purifying respirators are appropriate use a fullface respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls.
If the respirator is the sole means of protection, use a full-face supplied air respirator.
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Stability and reactivity:
Chemical stability:
Stable under recommended storage conditions.
Incompatible materials:
Strong oxidizing agents:
Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions.
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas.
Disposal considerations:
Waste treatment methods:
Product:
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contact a licensed professional waste disposal service to dispose of this material.
Contaminated packaging:
Dispose of as unused product.
