Description

Strontium-89,90 is a specialized radioactive isotope mixture, primarily consisting of Strontium-89 and Strontium-90, identified by CAS No. 11-10-9. This material is critical for research and industrial applications requiring a calibrated beta radiation source. It is essential for organizations in the nuclear energy, environmental monitoring, and advanced materials research sectors seeking reliable, high-specific-activity isotopes.

Application

• Calibration Source: Used for calibrating radiation detection and measurement equipment in laboratory and field settings.
• Nuclear Research: Serves as a tracer or source material in studies of beta decay, nuclear fission yields, and radiochemical processes.
• Environmental Science: Applied in tracer studies to monitor strontium migration in ecosystems and for modeling environmental contamination scenarios.
• Industrial Gauging: Potential use in β-backscatter or transmission gauges for measuring thickness or density in manufacturing processes.
• Educational Reference: Provides a hands-on reference material for advanced academic training in nuclear chemistry and physics.
• Waste Characterization: Acts as a simulant or reference standard in the development of methods for characterizing radioactive waste streams.

Basic Information

Product Name	Strontium-89,90
CAS No.	11-10-9
Molecular Formula	Sr (isotopic mixture)
Molecular Weight	Contact for details (isotope-specific)
Synonyms	Strontium-89; Strontium-90; Sr-89; Sr-90; Radioactive Strontium; Strontium, isotope of mass 89; Strontium, isotope of mass 90; Strontium-89/90 Mixture
EINECS	Contact for details

Quality Control

Our radioactive isotopes are produced and handled under strict quality assurance protocols to ensure precise activity concentration and radiochemical purity. Each batch is analyzed via gamma spectrometry and liquid scintillation counting to confirm isotopic composition and activity. A comprehensive Certificate of Analysis (COA) detailing the specific activity, radionuclidic purity, and reference date/time is provided with every shipment to ensure traceability and compliance with research and safety standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a designated, shielded radioactive materials area at a controlled room temperature (15-25°C). The container must be clearly labeled with the standard radiation trefoil symbol and appropriate handling information. Adhere to all local, national, and international regulations (e.g., IAEA, national nuclear regulatory bodies) for the safe storage and handling of radioactive materials.

Specification

Item	Specification
Appearance	Clear solution (typically in dilute acid matrix)
Total Activity Concentration	As per customer requirement (e.g., kBq/mL or MBq/mL)
Isotopic Ratio (Sr-89 / Sr-90)	Specified per batch
Radionuclidic Purity (Sr-89)	≥ 99% (by gamma spectrometry)
Radionuclidic Purity (Sr-90)	≥ 99% (via daughter Y-90 ingrowth)
Radiochemical Purity	≥ 98%
Chemical Form	Strontium ion in dilute nitric or hydrochloric acid
pH	1.0 - 3.0

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