Description

Strontium Aluminate CAS NO 42617-47-0 is an inorganic luminescent material, most notably recognized for its persistent phosphorescence. This compound matters for its exceptional afterglow properties, high quantum yield, and excellent chemical stability, making it a superior alternative to traditional sulfide-based phosphors. Industries requiring long-lasting, non-radioactive photoluminescence, such as safety signage, specialty pigments, and advanced optical materials, rely on its performance.

Application

• Safety and Emergency Signage: Core component in photoluminescent paints and tapes for exit signs, pathway markings, and low-light navigation.
• Specialty Pigments and Inks: Used in glow-in-the-dark arts, crafts, toys, and novelty items for long-lasting visual effects.
• Optical and Sensor Materials: Serves as a host material for rare-earth doped phosphors in LEDs, display screens, and optical sensors.
• Anti-Counterfeiting and Security: Incorporated into inks and materials for document authentication, brand protection, and high-security printing.
• Ceramics and Glazes: Imparts unique luminescent properties to specialty ceramics, tiles, and glass products.
• Research and Development: Key material in academic and industrial R&D for studying luminescence mechanisms and developing new photonic devices.

Basic Information

Product Name	Strontium Aluminate
CAS No.	42617-47-0
Molecular Formula	SrAl2O4 (common base)
Molecular Weight	205.58 g/mol (for SrAl2O4)
Synonyms	Strontium Dialuminate; Aluminum Strontium Oxide; Strontium Aluminum Oxide; Luminova (common trade name base); Persistent Luminescent Strontium Aluminate; SAO; SrAl2O4; Photoluminescent Strontium Aluminate
EINECS	Contact for details

Quality Control

Our Strontium Aluminate is produced under stringent quality management protocols. Each batch undergoes rigorous testing for critical parameters including phase purity, particle size distribution, luminescent intensity, and afterglow duration to ensure consistent performance and reliability. Certificates of Analysis (COA) detailing these specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Fine white to pale yellow powder
Identification (XRD)	Complies (SrAl2O4 phase)
Assay (SrAl2O4 basis)	≥ 99.0%
Particle Size (D50)	5 - 20 µm (customizable)
Afterglow Brightness (10 min)	≥ 30 mcd/m² (typical, depends on doping)
Afterglow Duration	> 2000 minutes (to 0.32 mcd/m²)
Loss on Drying	≤ 1.0 %

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