Description

Ammonium Cerium(IV) Sulfate Tetrahydrate is a high-purity inorganic salt of cerium in its +4 oxidation state, valued for its powerful and selective oxidizing properties. This compound is essential for applications requiring a stable and soluble source of ceric ions in aqueous sulfuric acid media. It is a critical reagent for research laboratories and industrial processes in sectors including pharmaceuticals, analytical chemistry, and materials science.

Application

• Oxidizing Agent in Organic Synthesis: Used for the selective oxidation of alcohols, phenols, and other organic functional groups in research and fine chemical manufacturing.
• Analytical Chemistry (Cerimetry): Serves as a primary standard in volumetric analysis (cerimetry) for the quantitative determination of reducing agents like ferrous ions, oxalates, and hydroquinones.
• Pharmaceutical Intermediate: Employed in the synthesis and purification steps for certain active pharmaceutical ingredients (APIs) where a strong, specific oxidant is required.
• Catalyst and Catalyst Precursor: Acts as a catalyst or a precursor for cerium-based catalysts in various chemical transformations and environmental applications.
• Electroplating & Surface Treatment: Used in specialized electroplating baths and for the surface treatment of metals and alloys.
• Research & Development: A fundamental reagent in academic and industrial R&D for exploring new oxidation methodologies and material properties.

Basic Information

Product Name	Ammonium Cerium(IV) Sulfate Tetrahydrate
CAS No.	13840-04-5
Molecular Formula	(NH₄)₄Ce(SO₄)₄·2H₂O (commonly written as Ce(SO₄)₂·2(NH₄)₂SO₄·2H₂O)
Molecular Weight	668.58 g/mol
Synonyms	Ammonium Ceric Sulfate; Ceric Ammonium Sulfate Tetrahydrate; Ammonium Hexasulfatocerate(IV) Tetrahydrate; Cerium(IV) Ammonium Sulfate; CAS; (NH4)4Ce(SO4)4.2H2O; Cerimetry Standard; Ceric Ammonium Sulphate
EINECS	237-558-1

Quality Control

Our Ammonium Cerium(IV) Sulfate Tetrahydrate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for analytical and synthetic applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept under conditions that minimize exposure to atmospheric humidity to prevent caking and degradation.

Specification

Item	Specification
Appearance	Yellow to orange-yellow crystalline powder
Identification (IR)	Conforms
Assay (as Ce(SO₄)₂·2(NH₄)₂SO₄·2H₂O)	≥ 98.0 %
Solubility (in 1N H₂SO₄)	Clear, yellow solution
Chloride (Cl)	≤ 0.005 %
Iron (Fe)	≤ 0.005 %
Other Rare Earth Elements	≤ 0.1 %

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