Zirconium Acetate

Zirconium Series

Zirconium Acetate, chemically represented as Zr(CH₃COO)₄ (predominantly existing in hydrated forms such as the dihydrate (Zr(CH₃COO)₄·2H₂O) or monohydrate (Zr(CH₃COO)₄·H₂O) under ambient conditions), is a key organic-inorganic hybrid compound in the zirconium salt family. Distinguished by its stable zirconium(IV) oxidation state (+4) and the organic compatibility of acetate ions, it bridges the gap between inorganic zirconium salts (e.g., nitrate, oxychloride) and fully organic zirconium complexes—making it ideal for applications requiring solubility in both aqueous and polar organic solvents. Unlike inorganic zirconium salts that may introduce unwanted anions (e.g., NO₃⁻, Cl⁻) in sensitive processes, Zirconium Acetate’s acetate anion is easily decomposed via pyrolysis or washed away, leaving minimal residues. With base purities ranging from 98% (technical grade) to 99.999% (ultra-high purity), it is widely used in organic synthesis, coating materials, biomedical research, and advanced ceramic processing.

Commercially, Zirconium Acetate is categorized by hydration state, purity, and physical form (powder or solution) to meet diverse application needs. Technical Grade (purity 98.0%–99.0%, typically dihydrate powder, particle size 100–200 mesh or 30%–50% aqueous solution) prioritizes cost-efficiency for industrial uses like textile finishing (improving fabric wrinkle resistance), wood preservatives (enhancing decay resistance), and precursor for zirconium oxide coatings. Reagent Grade (purity ≥99.5%, controlled hydration ±0.5%, 200–300 mesh powder or anhydrous form) meets laboratory standards for analytical chemistry (e.g., zirconium coordination studies), small-scale organic synthesis (as a Lewis acid catalyst), and bioactive material preparation (for cell adhesion studies). High-Purity Grade (purity ≥99.99%, monohydrate or anhydrous powder, 200–300 mesh) targets electronics and optoelectronics, including precursors for zirconium-based organic-inorganic hybrid films and dopants for conductive polymers—where trace impurities (e.g.,<10 ppb heavy metals, <5 ppb silicon, aluminum) must be minimized to avoid performance defects. Ultra-High Purity Grade (purity ≥99.999%, anhydrous Zirconium Acetate or high-purity solution) is a niche grade for semiconductor and quantum dot applications, with hydration tightly controlled (<0.1% moisture) to ensure compatibility with organic matrices. At standard temperature and pressure, Zirconium Acetate dihydrate appears as colorless to white crystalline powder or viscous aqueous solution—its light color and low reactivity simplify handling, while hydration state is distinguishable via thermal gravimetric analysis (TGA): dihydrate loses 结晶 water at 70–110°C, forming anhydrous Zr (CH₃COO)₄ above 180°C.

Physically, Zirconium Acetate exhibits traits tailored to its organic-inorganic hybrid nature and application requirements. The dihydrate (Zr (CH₃COO)₄・2H₂O) has a molecular weight of 383.40 g/mol, a bulk density of ~1.45 g/cm³ (powder), and exceptional solubility in both aqueous and polar organic solvents: it dissolves in water at ~35 g/100 mL (20°C) to form clear solutions, and in ethanol/methanol at ~25 g/100 mL (20°C)—a key advantage over inorganic zirconium salts like sulfate (insoluble in organics). Anhydrous Zirconium Acetate (molecular weight 347.35 g/mol) has a higher bulk density (~1.62 g/cm³) and enhanced solubility in non-polar solvents (e.g., acetone, ethyl acetate), with solubility ~10 g/100 mL in acetone, enabling use in anhydrous organic reactions. Aqueous solutions of Zirconium Acetate (30% concentration) have a viscosity of 5–8 cP (20°C) and a slightly acidic pH (4.0–5.0), ensuring compatibility with most organic polymers and avoiding corrosion of processing equipment. Thermal stability is moderate: dihydrate decomposes gradually above 110°C (losing 结晶 water), with complete decomposition to zirconium oxide (ZrO₂) above 450°C—releasing acetic acid vapor (CH₃COOH) and carbon dioxide (CO₂) in the process. It exhibits mild hygroscopicity (~0.7% moisture absorption at 60% humidity) compared to highly hygroscopic zirconium oxychloride, preventing severe caking but requiring sealed storage to maintain hydration consistency.

Chemically, Zirconium Acetate’s defining feature is the synergy between Zr⁴⁺ ions and acetate anions. As a zirconium(IV) acetate, it dissociates partially in aqueous solutions (due to acetate’s weak acidity) into Zr⁴⁺ and CH₃COO⁻ ions, with Zr⁴⁺ ions forming stable hydrated complexes (e.g., [Zr(H₂O)₆]⁴⁺) that exhibit mild Lewis acid properties. This acidity enables it to catalyze organic reactions (e.g., esterification, aldol condensation) with high selectivity, avoiding side reactions like charring common with strong inorganic acids. Unlike zirconium nitrate (a potential source of NOₓ during decomposition), Zirconium Acetate decomposes into non-toxic byproducts, making it safe for biomedical and food-contact applications (e.g., coating for food packaging). When reacted with strong bases (e.g., sodium hydroxide), it forms insoluble zirconium hydroxide (Zr(OH)₄) precipitates (Zr(CH₃COO)₄ + 4NaOH → Zr(OH)₄↓ + 4CH₃COONa), a reaction used in analytical chemistry to isolate zirconium from organic matrices. In organic solvents, it forms adducts with oxygen-containing ligands (e.g., ethers, ketones), enhancing its solubility and reactivity in non-aqueous systems.

The industrial production of Zirconium Acetate primarily uses zirconium-rich raw materials, such as zirconium oxide (ZrO₂) or zirconium oxychloride (ZrOCl₂·8H₂O), via neutralization with acetic acid or acetate metathesis. The process involves four core steps. First, raw material preparation: if using ZrO₂ (purity ≥99.0%), it is crushed to 100–200 mesh and activated via calcination at 600–700°C to improve reactivity; if using zirconium oxychloride, it is dissolved in deionized water to form a 20%–30% solution. Second, neutralization/metathesis: activated ZrO₂ is mixed with glacial acetic acid (CH₃COOH, 99.5% purity) in a reaction vessel at 80–100°C, with a molar ratio of ZrO₂ to CH₃COOH of 1:4 (reaction: ZrO₂ + 4CH₃COOH + 2H₂O → Zr(CH₃COO)₄·2H₂O). For zirconium oxychloride, ammonium acetate ((NH₄)CH₃COO) is added to induce metathesis, forming Zirconium Acetate and ammonium chloride (byproduct, removed via evaporation). Third, purification: the resulting solution is filtered to remove undissolved impurities (e.g., silica, titanium oxides). For high-purity grades, solvent extraction (using ethyl acetate) or ion exchange is used to reduce trace metals and chloride ions to ppb levels. Fourth, finishing: to produce powder, the purified solution is concentrated under reduced pressure at 50–60°C to a 60%–70% concentration, then cooled to 0–5°C to induce crystallization; crystals are washed with cold ethanol and dried at 60–80°C. To produce aqueous solutions, the purified solution is adjusted to the target concentration (30%–50%) and stabilized with a small amount of acetic acid (0.1%–0.5%) to prevent hydrolysis. High-purity grades are packaged in nitrogen-filled containers to avoid moisture absorption.

Zirconium Acetate’s applications are driven by its dual solubility and mild reactivity. In coating materials, Technical Grade aqueous solution is used as a binder for ceramic coatings: mixed with alumina powder, it forms a uniform coating on metal substrates that sinters at low temperatures (~500°C), improving corrosion resistance. In organic synthesis, Reagent Grade anhydrous powder is a versatile Lewis acid catalyst for biodiesel production (transesterification of vegetable oils), offering higher conversion rates than traditional catalysts like KOH. In electronics, High-Purity Grade Zirconium Acetate is a precursor for zirconium-doped organic semiconductors: dissolved in chloroform, it is spin-coated onto substrates and annealed to form films with enhanced charge mobility. In biomedical research, Ultra-High Purity Grade solution is used to modify the surface of titanium implants: it forms a thin zirconium oxide layer that promotes bone cell adhesion, reducing implant rejection rates. Additionally, it is used in paper industry as a sizing agent, improving paper’s water resistance and printability by forming stable complexes with cellulose fibers.

Safety-wise, Zirconium Acetate has low acute toxicity and is considered safe for most industrial and laboratory uses. Its powder and solutions cause minimal skin or eye irritation—direct contact may result in mild dryness, but no chemical burns (unlike strong acids or oxidizing salts). Inhalation of fine powder may irritate the respiratory tract, leading to temporary coughing, so dust generation should be minimized via proper ventilation. Aqueous solutions are non-corrosive to most metals (e.g., aluminum, stainless steel), simplifying storage and handling. It is non-flammable, and thermal decomposition releases only acetic acid (a weak, volatile acid) and non-toxic gases, posing no fire or explosion risks. To ensure safety, operators should wear nitrile gloves and safety goggles when handling; a dust mask is recommended for fine-powder grades. Storage should be in a cool (15–25°C), dry (<60% area="" in="" sealed="" powdered="" forms="" should="" be="" protected="" from="" excessive="" heat="">70°C) to prevent water loss, while aqueous solutions should be stored away from strong bases to avoid precipitation. In case of skin contact, rinse with water for 10 minutes; eye contact requires flushing with water. If inhaled, move to fresh air. When stored properly, powdered Zirconium Acetate has a shelf life of 1–2 years, aqueous solutions 6–12 months (due to potential hydrolysis). Expired products may show reduced solubility, solution turbidity, or moisture absorption (detected via TGA) and should be tested before use.

WNX employs advanced automated production technology and uses high-quality raw materials to produce high-quality Zirconium Acetate.

Key Features:

High Purity:Zirconium Acetate contains no impurities from rare earth elements (such as iron, calcium, sodium), and the impurity content is low.

Good Solubility: Zirconium Acetate can dissolve rapidly in water and strong acids.

Consistency: The strict batch management in the production of Zirconium Acetate ensures stable quality for industrial large-scale production.

Chemical industry catalysts and precursors: Acetate of zirconium can be used as a Lewis acid catalyst in organic synthesis reactions. More importantly, it is a key precursor for the preparation of metal-organic framework materials (MOFs) and zirconium oxide (ZrO₂) coatings or nanomaterials. These materials have important applications in catalysis, adsorption, and advanced ceramics fields.

Textile, Papermaking and Building Materials Additives: In the textile and papermaking industries, Zirconium Acetate solution is widely used as a flame retardant and surface treatment agent to enhance the fire resistance and water resistance of materials. In the construction materials sector, it can be used as a waterproofing agent.

Functional material preparation: In the field of new energy, Zirconium Acetate has been studied for use in perovskite solar cells as a hole-blocking layer, which helps to increase the fill factor and efficiency of the cells. It is also used as a drying agent for paints and a stabilizer for colloids.

Chemical synthesis intermediates: As an important source of zirconium, ethyl zirconium acetate serves as the basic raw material for synthesizing other zirconium compounds (such as various zirconium salts and zirconium esters).

1.Neutral labels/packaging (jumbo bag of 1.000kg each net),Two bags per pallet.

2.Vacuum-sealed, then wrapped in air cushion bags, and finally packed into iron drums.

Drum: Steel drums (open-top, 45L capacity, dimensions: φ365mm × 460mm / inner diameter × outer height).

Weight per Drum: 50 kg

Palletization: 18 drums per pallet (total 900 kg/pallet).

Transport Class: Maritime transportation / Air transportation

Custom packaging available upon request