Description

Krypton-81M is a metastable nuclear isomer of the noble gas krypton, identified by the CAS number 15678-91-8. This specialized isotope is valued for its unique nuclear properties, making it a critical tool in advanced scientific research and diagnostic applications. It is primarily utilized by research institutions, national laboratories, and medical facilities engaged in nuclear physics, tracer studies, and specialized imaging techniques.

Application

• Nuclear Physics Research: Used as a target or tracer in studies of nuclear isomerism, decay processes, and fundamental particle interactions.
• Medical Research & Imaging: Investigated for potential applications in positron emission tomography (PET) and other nuclear medicine diagnostics as a novel radiotracer.
• Environmental Tracer Studies: Employed in atmospheric science and hydrology to trace and model air and groundwater movement over long distances.
• Industrial Process Analysis: Applied in leak detection and flow rate measurement within sealed or high-integrity systems.
• National Security & Safeguards: Utilized in nuclear non-proliferation monitoring and verification technologies.
• Academic Laboratory Use: Serves as a reference material and experimental component in university-level advanced physics and chemistry programs.

Basic Information

Product Name	Krypton-81M
CAS No.	15678-91-8
Molecular Formula	81mKr
Molecular Weight	80.9166 g/mol (atomic mass)
Synonyms	Krypton-81m; Kr-81m; 81mKr; Krypton, isotope of mass 81m; Metastable Krypton-81; UN 1056 (for Krypton, compressed); Krypton, refrigerated liquid (cryogenic liquid)
EINECS	Contact for details

Quality Control

Our Krypton-81M is produced and handled under strict quality protocols to ensure isotopic purity and radionuclidic consistency. Each batch is supported by comprehensive documentation, including a Certificate of Analysis (COA) detailing isotopic enrichment, radionuclidic purity, and gas purity. We adhere to relevant guidelines for the handling of radioactive materials. Certificates are available upon request.

Storage

Preserve in a tightly closed, approved specialty gas cylinder or container, protected from all light exposure. Store in a cool, well-ventilated area dedicated for radioactive materials. Cylinders should be secured to prevent falling or damage. Storage conditions must comply with all local and international regulations for radioactive gases.

Specification

Item	Specification
Appearance	Colorless Gas
Isotopic Enrichment (81mKr)	>99% (Radioisotopic Purity)
Carrier Gas (if applicable)	Ultra-high Purity Nitrogen or Helium
Radionuclidic Purity	Contact for details
Specific Activity	Contact for details
Pressure & Fill Volume	Customized to order

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