Description

Zirconium Sulfate Tetrahydrate CAS NO 7446-31-3 is an important inorganic zirconium salt, valued for its role as a versatile precursor and catalyst in various industrial processes. Its primary commercial significance lies in its ability to provide a soluble source of zirconium ions for applications ranging from material synthesis to surface treatment. This product is essential for manufacturers and R&D facilities in the chemical, ceramic, and catalyst industries seeking reliable and consistent zirconium chemistry.

Application

• Catalyst Preparation: Serves as a key precursor for solid acid catalysts and catalyst supports used in petroleum refining and organic synthesis.
• Surface Treatment & Tanning: Used as a tanning agent in the leather industry and for surface modification of textiles and metals to improve properties.
• Ceramics & Pigments: Acts as a raw material in the production of specialty zirconia-based ceramics, opacifiers, and color pigments.
• Precipitation & Co-precipitation: Employed in analytical chemistry and material science for the selective precipitation of compounds and synthesis of composite materials.
• Water Treatment: Functions as a coagulant aid or in processes for phosphate removal and heavy metal ion sequestration.
• Chemical Synthesis: Used as a starting material for the synthesis of other zirconium compounds, such as zirconium oxide and zirconium alkoxides.

Basic Information

Product Name	Zirconium Sulfate Tetrahydrate
CAS No.	7446-31-3
Molecular Formula	Zr(SO4)2 • 4H2O
Molecular Weight	355.41 g/mol
Synonyms	Zirconium(IV) sulfate tetrahydrate; Sulfuric acid, zirconium(4+) salt, tetrahydrate; Zirconium disulfate tetrahydrate; Zirconium sulphate tetrahydrate; Zirconyl sulfate; Basic zirconium sulfate; Zirconium sulfate hydrate
EINECS	231-217-6

Quality Control

Our Zirconium Sulfate Tetrahydrate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot is analyzed against rigorous internal specifications, which typically include parameters for zirconium content, sulfate content, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing the results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, this material must be stored in a cool, dry, and well-ventilated area. For long-term stability, maintain the storage temperature between 15°C and 25°C (59°F and 77°F). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White crystalline powder or lumps
Identification (IR)	Conforms
Assay (as Zr(SO4)2 • 4H2O)	≥ 98.0 %
Zirconium (Zr) Content	Contact for details
Iron (Fe)	≤ 0.01 %
Chloride (Cl)	≤ 0.005 %
Heavy Metals (as Pb)	≤ 0.002 %
Loss on Drying	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.