HEXAFLUOROZIRCONIC ACID

Hexafluorozirconic acid is an inorganic acid composed of H2 [ZrF6], transition metal zirconium and halogen fluorine.
Hexafluorozirconic acid's salts are hexafluorozirconates.

CAS Number: 12021-95-3
EC Number: 234-666-0
IUPAC Name: tetrafluorozirconium dihydrofluoride
Chemical Formula: F6H2Zr

Other names: Zirconate(2-), hexafluoro-, dihydrogen, (OC-6-11)-, Hexafluorozirconic acid, 12021-95-3, tetrafluorozirconium;dihydrofluoride, Hexafluorzirkonsaurelosung, AKOS015903617, Q62018152, Hexafluorzirkonsaurelosung, Tetrafluorozirconium, dihydrofluoride, AKOS015903617, zirconium (IV) fluoride dihydrofluoride, FT-0627006, Hexafluorozirconic acid solution, 50 wt. % in H2O, J-521444, Q62018152, Dihydrogen hexafluorozirconate solution, Hexafluorozirconic acid, Hexafluorozirconic acid solution, Hydrogen zirconium fluoride, MFCD00082965, Tetrafluorozirconium dihydrofluoride, Tétrafluorozirconium, difluorhydrate, Tetrafluorzirconiumdihydrofluorid, Dihydrogen hexafluorozirconate, ZIRCONIUM TETRAFLUORIDE DIHYDROFLUORIDE

Hexafluorozirconic acid , H 2 [ZrF 6 ], is an inorganic acid consisting of the transition metal zirconium and the halogen fluorine.
Their salts are the hexafluorozirconates.
The acid and its salts are used in metal surface technology.

A 45% aqueous solution of hexafluorozirconic acid is an odorless, colorless liquid. It has a density of 1.51 g · cm −3 .The pH value is <1 at 20 ° C. 
An inorganic compound aqueous solution used mainly used in manufacturing of optical glass and fluozirconate,in the metal industry as corrosion inhibitor for surface pre-treatment. It is most effective on aluminum, but can also used on other metals.

What is Hexafluorozirconic Acid?
Hexafluorozirconic acid (HFZA) is mainly used as a corrosion inhibitor by customers operating in the metal and plating industry. Although it can be used on other metals, it shows the highest efficiency on aluminum.

Customers are using Hexafluorozirconic acid as an alternative to nickel-based products with less hazardous properties when it comes to environmental and health and safety regulations. Hexafluorozirconic acid applications include electroplating, aluminum varnishing in chromium-free processes, synthesis of fluoride-releasing dental monomers as the precursor to ZrO2 ceramic films, and metal.

Hexafluorozirconic acid reduces sludge formation as a by-product - eg. In zinc phosphate based systems.
The treatment bath is composed of dilute hexafluorozirconic acid with small quantities of non-hazardous components containing Si and Cu.
The performance of treated steel was compared to samples treated in a phosphate conversion coating bath, in simple hexafluorozirconic acid and in TecTalis without the addition of the Cu containing
component.

Atomic Force Microscopy (AFM) and Transmission Electron Microscopy (TEM) were used to characterize the coating surface morphology, structure and composition.
A Quartz Crystal Microbalance (QCM) was used for studying film growth kinetics on thin films of pure Fe, Al and Zn.
Electrochemical Impedance Spectroscopy (EIS) was performed on treated and painted steel for studying long-term corrosion performance of the coatings.

The phosphate-free coating provided long-term corrosion performance comparable to that of phosphate conversion coatings.
The coatings uniformly cover the surface in the form of 10-20 nm sized nodules and clusters of these
features up to 500 nm in size. The coatings are usually about 20-30 nm thick and are mostly composed of Zr and O with enrichment of copper at randomly distributed locations and clusters.

Anodizing is an electrolytical process typically used to improve the corrosion resistance of aluminum alloys, through which a thicker and porous oxide is formed.
Boiling water is used as a common sealing method to the anodic layer; however, it implies energy expenditure. In this work, a two-step coating system was performed: anodizing in tartaric-sulphuric acid and a post-treatment with a Zr-based conversion coating, obtained at room temperature by immersion in hexafluorozirconic acid (H2ZrF6).

To establish the best condition for coating formation on the aluminum oxide layer, different concentration and pH values of the H2ZrF6 solution were studied. Morphological and chemical analyses were performed respectively by SEM and EDS. The corrosion resistance evaluation was carried out by EIS in 0.5 M NaCl. Heterogeneity was observed in the obtained coatings. However, the samples treated with H2ZrF6 had a higher corrosion resistance than unsealed samples. The best concentration and pH range observed for the H2ZrF6 solution were 1 % and 3 to 3.5, respectively. Under these conditions, a greater corrosion resistance was evidenced in comparison to that obtained with boiling water sealing.

In this study, steel samples treated in a hexafluorozirconic acid based solution for different durations were investigated. X-ray photoelectron spectroscopy (XPS) revealed the existence of a zirconium oxide (ZrO2) layer on the treated steel. The increased contact angle of water on the treated steel with increased treatment duration indicated that the hexafluorozirconic acid treatment promoted the hydrophobicity of the surface.

The corrosion results showed that the longer acid treatment gave rise to higher corrosion resistance of the treated steel in a 0.5 M NaCl solution by forming the better ZrO2 layer on the steel surface. The cathodic delamination of polyurethane coatings from the treated steel substrates was measured using a Scanning Kelvin Probe (SKP). The longer acid treatment resulted in significantly slower rate of cathodic delamination of the polyurethane coating due to the higher adhesion strength of the coating.
Hexafluorozirconic Acid, 45%, CAS 12021-95-3, (also known as hexafluorozirconic acid or Hexafluorozirconic acid) has the formula H2ZrF6. It is a corrosive chemical, like all salts of Hexafluorozirconic acid. Hexafluorozirconic acid finds use in zirconium oxide thin films for aluminum annodizing, in surface treatment applications, electroplating, and in chrome-free aluminum lacquering processes.  For metal treatment processes, Hexafluorozirconic acid and Fluorotitanic acid are often used together in the plating system.

Other release to the environment of this substance is likely to occur from: outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials) and indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment). This substance can be found in products with material based on: metal (e.g. cutlery, pots, toys, jewellery).

Hexafluorozirconic Acid Solution has multiple uses in inorganic chemical reactions such as titanium oxide photocatalysts and the preparation of zirconium oxide thin films. American Elements can manufacture most materials in high purity and ultra-high purity (up to 99.99999%) forms and conforms to current ASTM test standards; A range of grades are available, including

The Hexafluorozirconic acid is an organic compound with the formula H2ZrF6. The analysis is provided for the Hexafluorozirconic Acid international market including development history, Hexafluorozirconic Acid industry competitive landscape analysis. The composition also comprises hexafluorozirconic acid or salts thereof.

Most of the nanozirconia coating formulations are based on hexafluorozirconic acid solutions that may contain hexafluorosilicic acid indispensably. A new process has been developed to synthesize hexafluorozirconic acid in the powder form which is free from silica as indicated by the absence of Si peak in EDX spectrum. Nano-ceramic coating process is simplified by making up the bath solution using dry H2ZrF6 powder and polyacrylic acid. The powder form makes transportation easier. 

Hexafluorozirconic acid powder based nano zirconia (PNZ) coat was characterized by FESEM (field emission scanning electron microscopy), EDX (Energy-Dispersive X-ray Spectroscopy), XRD (X-ray diffraction) and XPS (X-ray photoelectron spectroscopy) studies. The PNZ coat formed on mild steel (MS) was characterized by linear polarization (LP) studies and Electrochemical Impedance Spectroscopy (EIS) and also compared with the commercial nano-zirconia coating chemical (Bonderite NT-1) treated mild steel.

Polyester epoxy powder coat (PEP) was applied on powder based nano zirconia treated mild steel (PEP/PNZ), and commercially Bonderite NT-1 treated mild steel (PEP/NT). The dry film properties of the organic coat with the nanoceramic base coat were studied by neutral salt spray test, humidity resistance, impact resistance and adhesion tape tests as per ASTM (American Society for Testing and Materials) methods. The corrosion resistance and adhesion of PEP/PNZ coating system are comparable with the performance of PEP coated on the commercial nano zirconia coating solution (NT-1).

Our Hexafluorozirconic acid is a 40% aqueous solution with stable quality and low-level impurities
Synthesis and characterization of powder form of hexafluoro zirconic acid.
Convenient form of powder based nano-zirconia (PNZ) coating formulation and its corrosion resistance on mild steel.
Electrochemical corrosion studies of PNZ treated mild steel (MS) without organic top coat.
Comparison of polyester epoxy powder coat (PEP) on PNZ and commercial Bonderite NT-1 treated MS.

Application
Used for:
Hexafluorozirconic acid based surface pretreatments on steel for corrosion resistance
Preparation of titania photocatalyst synthesized from ionic-liquid-like precursor
Synthesis of fluoride-releasing dental monomer
As precursor to ZrO2 ceramic thin films

Mil Spec (military grade), ACS, Reactive & Technical Grade, Food, Agricultural & Pharma Grade, Optical Grade, USP and EP / BP (European Pharmacopoeia / British Pharmacopoeia) In addition to special compositions for commercial and research applications and new proprietary technologies, on request We can also produce materials according to special specifications.

Typical and specialty packaging is available, as well as additional research, technical and safety (MSDS) data. For information on features, delivery time and pricing, please contact us above.The main use of zirconium is in dentistry as a refractory material as a protective coating on titanium dioxide pigment particles, as well as in the production of hard ceramics such as insulation, abrasives and enamels.

Stabilized zirconia is used in oxygen sensors and fuel cell membranes because it has the ability to allow oxygen ions to move freely through the crystalline structure at high temperatures. This high ionic conductivity (and low electronic conductivity) makes it one of the most useful electro ceramics.

Zirconium dioxide is also used as a solid electrolyte in electrochromic devices.Zirconia is the precursor to electro ceramic lead zirconate titanate (PZT), the high K dielectric found in numerous components. It is a phosphate-free compound used in environmentally friendly metal surface coating chemicals. used before painting. It has an effect preventing corrosion and enhancing the adhesion of the paint to the surface.

Niche uses: The very low thermal conductivity of the cubic phase of zirconium has also led to its use as a thermal barrier coating or TBC to allow higher temperatures in jet and diesel engines. Thermodynamically, the higher the operating temperature of an engine, the higher the possible efficiency.

Another use of low thermal conductivity is a ceramic fiber insulation for crystal growth furnaces, fuel cell stack insulation and infrared heating systems.This material is also used in dentistry for dental restorations such as crowns and bridges coated with traditional feldspathic porcelain for aesthetic reasons or made entirely of monolithic zirconia. It is used in the manufacture of sub-frames for the construction of strong, extremely durable dental prostheses. , with a limited but constantly evolving aesthetic.

Zirconia stabilized with yttria (yttrium oxide), known as zirconia stabilized with yttria, can be used as a strong base material in some all-ceramic crown restorations. Transform hardened zirconia is used in making ceramic knives. Due to its hardness, ceramic edged cutlery stays sharp longer than steel edged products. It was used as a component of sticks to be the center of attention due to its infusibility and brilliant shine in incandescent state.

Other release to the environment of this substance is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives).

Hexafluorozirconic Acid Solution has many uses in inorganic chemical reactions such as the preparation of titanium oxide photocatalysts and zirconium oxide thin films.
Hexafluorozirconic Acid is used in the following products: laboratory chemicals.