Description

Diholmium Oxide is a high-purity rare earth compound, also known as holmium(III) oxide, with the CAS registry number 62462-59-3. It is a critical material valued for its exceptional magnetic and optical properties, enabling advanced technological applications. This compound is essential for manufacturers and research institutions in the fields of specialty glass, solid-state lasers, and nuclear reactor control systems.

Application

• Specialty Glass & Ceramics: As a dopant to impart specific yellow or red coloration and to modify refractive index.
• Solid-State Lasers: A key component in yttrium-based crystals (e.g., Ho:YAG) for medical, military, and scientific laser systems.
• Nuclear Industry: Utilized in control rods and shielding due to its high neutron absorption cross-section.
• Catalyst Formulation: Serves as a catalyst or catalyst promoter in specific organic synthesis and petroleum refining processes.
• Magnetic Materials: Used in the production of high-strength permanent magnets and magnetic refrigeration alloys.
• Optical Coatings & Filters: Employed in thin-film coatings for specialized optical components.
• Research & Development: A fundamental reagent in materials science research for studying magnetic and luminescent behaviors.
• Calibration Standards: Used as a standard in analytical chemistry and spectroscopy due to its well-defined absorption spectra.

Basic Information

Product Name	Diholmium Oxide
CAS No.	62462-59-3
Molecular Formula	Ho2O3
Molecular Weight	377.86 g/mol
Synonyms	Holmium(III) Oxide; Holmium Sesquioxide; Holmium Oxide; Holmia; Holmium Trioxide; Holmium(3+) Oxide; Rare Earth Oxide
EINECS	263-238-0

Quality Control

Our Diholmium Oxide is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including assay by titration and trace metal analysis by ICP-MS, to ensure it meets exacting purity standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent absorption of moisture and carbon dioxide.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder
Identification (IR)	Conforms
Assay (as Ho2O3)	≥ 99.9% (3N)
Assay (as Ho2O3)	≥ 99.99% (4N) (Available)
Rare Earth Purity (REO)	≥ 99.5%
Loss on Ignition (LOI)	≤ 1.0%
Particle Size (D50)	Customizable (1-10 µm typical)

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