Description

Didymium Chloride is a high-purity inorganic salt composed of a mixture of rare earth elements, primarily neodymium and praseodymium. This compound is valued for its unique optical and catalytic properties, making it a critical material in advanced manufacturing and research. It is essential for industries requiring specialized rare earth chemistry, such as optical glass manufacturing, phosphors, and catalysis.

Application

• Optical Glass & Filters: A key component in the production of specialty glasses, including didymium glass used for welder's goggles and photographic filters to absorb specific yellow sodium light.
• Phosphors & Luminescent Materials: Serves as a precursor in the synthesis of phosphors for lighting, displays, and other applications requiring specific light emission.
• Catalysis: Used as a catalyst or catalyst promoter in various organic synthesis and petrochemical processes due to its Lewis acid characteristics.
• Research & Development: Employed in academic and industrial R&D as a starting material for synthesizing other rare earth compounds and studying lanthanide chemistry.
• Ceramics & Pigments: Imparts specific colors and properties to advanced ceramics and specialty inorganic pigments.
• Metal Alloying: Used as an additive in magnesium and aluminum alloys to enhance strength and high-temperature performance.

Basic Information

Product Name	Didymium Chloride
CAS No.	11098-90-1
Molecular Formula	Cl3NdPr (commonly represented as Cl3RE where RE = Nd, Pr)
Molecular Weight	~ 374.60 g/mol (varies with exact Nd/Pr ratio)
Synonyms	Didymium trichloride; Neodymium praseodymium chloride; Rare earth chloride (Nd/Pr); Chlorodidymium; Praseodymium neodymium chloride; Didymium(III) chloride; Lanthanide chloride mixture (Nd, Pr); Mischmetal chloride (Nd/Pr-rich)
EINECS	Contact for details

Quality Control

Our Didymium Chloride is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent composition, purity, and performance. We provide comprehensive Certificates of Analysis (COA) detailing assay, rare earth oxide (REO) content, impurity profiles, and physical characteristics. Specifications can be tailored to meet the requirements of optical, catalytic, and high-purity research applications.

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 must be kept in a dry environment to prevent caking and hydrolysis. For long-term storage, consider the use of a desiccator or inert atmosphere.

Specification

Item	Specification
Appearance	Light purple to greenish crystalline solid or powder
Identification (IR)	Complies
Assay (as REO)	≥ 99.0 %
Assay (Didymium Chloride)	≥ 99.5 %
Nd2O3 / Pr6O11 Ratio	~ 75/25 or as requested
Water (Loss on Drying)	≤ 1.0 %
Insoluble Matter	≤ 0.1 %
Chloride Content (Titration)	Contact for details

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