Description

Calcium Tungstate is an inorganic compound with the chemical formula CaWO₄, widely recognized for its luminescent properties. This material is a key functional component in various high-tech industrial and research applications due to its unique crystal structure and stability. It is essential for manufacturers and researchers in the fields of scintillation detection, phosphors, and solid-state lasers. Our supply of high-purity Calcium Tungstate CAS NO 7790-75-2 ensures consistent performance and reliability for demanding technical processes.

Application

• Scintillation Crystals: Primary application in medical imaging equipment (PET/CT scanners) and high-energy physics detectors for radiation measurement.
• Phosphor Material: Used in X-ray intensifying screens, fluorescent lamps, and cathode-ray tubes for efficient light emission.
• Solid-State Laser Host: Serves as a laser host crystal, particularly for tunable and ultrafast lasers in research and material processing.
• Catalyst & Ceramics: Acts as a catalyst in certain chemical reactions and as a component in specialized ceramics and pigments.
• Optical & Electronic Devices: Employed in the fabrication of photonic devices, optical fibers, and other electro-optical components.
• Research & Development: Utilized in academic and industrial R&D for studying luminescence, crystal growth, and material science.

Basic Information

Product Name	Calcium Tungstate
CAS No.	7790-75-2
Molecular Formula	CaWO₄
Molecular Weight	287.93 g/mol
Synonyms	Calcium Wolframate; Calcium Tungstate(VI); Scheelite (mineral form); Tungstic Acid, Calcium Salt; Calcium Orthotungstate; Calcium Tetraoxotungstate; CaWO₄
EINECS	232-220-9

Quality Control

Our Calcium Tungstate is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including X-ray diffraction (XRD) for phase purity and inductively coupled plasma (ICP) analysis for trace metal content. Certificates of Analysis (COA) detailing all specifications are available for every batch upon request, supporting compliance with industrial and research-grade requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed to minimize exposure to atmospheric moisture and carbon dioxide.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (XRD)	Conforms to CaWO₄ structure
Purity (CaWO₄)	≥ 99.9%
Tungsten (W) Content	≥ 63.8%
Calcium (Ca) Content	≥ 13.9%
Trace Metals (ICP)	≤ 100 ppm total
Particle Size (D50)	1-10 µm (customizable)
Loss on Drying	≤ 0.5%

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