Zirconium Hydroxide

• CAS: 14475-63-9
• Catalog Number: ACM14475639-2
• Category: Main Products
• Molecular Weight: 159.25
• Molecular Formula: Zr(OH)4;H4O4Zr
• Description: DryPowder, WetSolid; WetSolid
• Synonyms: Zirconium hydroxide, hydrate
• IUPAC Name: Zirconium(4+);tetrahydroxide
• Canonical SMILES: [OH-].[OH-].[OH-].[OH-].[Zr+4]
• InChI: InChI=1S/4H₂O.Zr/h4*1H2;/q;+4/p-4
• InChI Key: HAIMOVORXAUUQK-UHFFFAOYSA-J
• Solubility: Insoluble in water
• Appearance: White amorphous powder
• Complexity: 0
• Covalently-Bonded Unit Count: 5
• EC Number: 238-472-7;235-770-9
• Exact Mass: 157.915657
• Formal Charge: 0
• H-Bond Acceptor: 4
• H-Bond Donor: 4
• Heavy Atom Count: 5
• Monoisotopic Mass: 157.915657
• Rotatable Bond Count: 0
• Topological Polar Surface Area: 4 Ų
• UNII: T5YIC9E1JX

Case Study

Self-Healing Nanocomposite Hydrogel Cross-Linked with Zirconium Hydroxide Nanoparticles

Jiang, Haoyang, et al. Composites Science and Technology, 2017, 140, 54-62.

This work synthesised a zirconium hydroxide (Zr(OH)4) cross-linked nanocomposite hydrogel (Zr-NC gel) using the non-covalent hydrogen bonding between polymer chains and zirconium hydroxide. The optimised Zr-NC gel is tensile (404.3 KPa), compressive (36.6 MPa) and self-healing (86%) by adjusting the ratio of zirconium hydroxide and AMPS/AM molar.
Preparation of Zr-NC gels
· In-situ free radical copolymerisation of 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and acrylamide (AM) in different molar ratios yielded Zr-NC gels, which were kept constant at a total monomer concentration of 2 mol/L.
· A given amount of Zr(OH)4 colloidal solution was added to room temperature deionised water. AM and AMPS monomers were added in the sequences to this solution, then nitrogen gas was forced through the solution, stirring continuously, for 15 minutes. Its resultant product was then ice-cooled to 0°C for 10 minutes in an ice-water bath. After vigorous stirring for 3 more minutes, 8 µl of TEMED and 0.5 ml of 2 wt% KPS solution were slowly added.
· The mixture was subsequently transferred to a glass tube where in-situ free radical polymerization was allowed to occur at room temperature for 72 hours. Finally, the hydrogels were washed to eliminate any unreacted monomers. The composition of the Zr-NC gels is denoted as AM m-Zr n-gel, where the values for m and n varied within the ranges of 50-90 and 2-12, respectively.

Adsorption of Ammonia on Zirconium Hydroxide Treated with Sulfuric Acid

Glover, T. Grant, et al. Langmuir, 2012, 28(28), 10478-10487.

The adsorption of ammonia on zirconium hydroxide [Zr(OH)4] and Zr(OH)4 treated with sulfuric acid was studied. The results show that the treatment of Zr(OH)4 with sulfuric acid leads to the formation of sulfate on the surface of the material, which improves the ammonia adsorption capacity by forming ammonium sulfate species. In addition, calcining Zr(OH)4 reduces the ammonia adsorption capacity of the material and limits the formation of sulfate species.
Possible mechanism of ammonia adsorption on Zr(OH)4
· Ammonia is captured by forming a surface ammonium salt through the removal of an acidic proton from Zr(OH)4. NMR results indicate the exclusive presence of ammonium species, suggesting that ammonia-zirconium complexes are unlikely. The main peak in the spectra for sample S appears at approximately δ = -371 ppm, aligning well with literature values for an ammonium sulfate species.
· In sample CS [Zr(OH)4 calcined and then treated with sulfuric acid (CS)], a combination of these species is observed, with the surface-bound NH4+ salt species contributing most significantly to the adsorption capacity. A smaller contribution from the ammonium sulfate species is noted, consistent with the limited sulfur content in the CS sample [Zr(OH)4 treated with sulfuric acid and then
calcined (SC)]. Conversely, in sample SC, the ammonium sulfate species is the primary contributor to ammonia capacity. For sample C, which has only been calcined and not treated with sulfuric acid, no ammonium sulfate species are detected, and its adsorption capacity is attributed solely to the NH4+ salt formed with the Zr(OH)4 surface.

Custom Q&A

What is the molecular formula of Zirconium hydroxide?

The molecular formula of Zirconium hydroxide is H4O4Zr or Zr(OH)4.

What is the molecular weight of Zirconium hydroxide?

The molecular weight of Zirconium hydroxide is 159.25 g/mol.

What are the synonyms for Zirconium hydroxide?

The synonyms for Zirconium hydroxide include Zirconium(IV) hydroxide, Zirconium tetrahydroxide, and Zirconium(IV)_hydroxide.

What is the IUPAC name of Zirconium hydroxide?

The IUPAC name of Zirconium hydroxide is zirconium(4+);tetrahydroxide.

What is the InChIKey of Zirconium hydroxide?

The InChIKey of Zirconium hydroxide is HAIMOVORXAUUQK-UHFFFAOYSA-J.

What is the CAS number of Zirconium hydroxide?

The CAS number of Zirconium hydroxide is 12688-15-2.

What is the UNII of Zirconium hydroxide?

The UNII of Zirconium hydroxide is T5YIC9E1JX.

What is the hydrogen bond donor count of Zirconium hydroxide?

The hydrogen bond donor count of Zirconium hydroxide is 4.

What is the hydrogen bond acceptor count of Zirconium hydroxide?

The hydrogen bond acceptor count of Zirconium hydroxide is 4.

What is the topological polar surface area of Zirconium hydroxide?

The topological polar surface area of Zirconium hydroxide is 4Ų.