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Rubidium-87 (⁸⁷Rb)
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Strontium-88 (⁸⁸Sr)
Strontium-88 (⁸⁸Sr)
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Strontium-88 (⁸⁸Sr) Suppliers and Factory in China - Stable Isotope with High Purity and Solubility

Basic Nuclear Properties of Strontium-88
Strontium-88 (⁸⁸Sr) is recognized as the most prevalent stable isotope of strontium, featuring a natural abundance of 82.58% and an atomic mass of 87.9056 u. With a nuclear spin of I=0, it exhibits no nuclear magnetic moment and demonstrates exceptionally high nuclear purity, with radioactive isotopes ⁸⁹Sr and ⁹⁰Sr present at levels below 10⁻¹². Strontium nitrate-88 appears as a white orthorhombic crystal belonging to the space group Pnam. It has a decomposition melting point of 570℃ and a density of 2.986 g/cm³. This compound is highly soluble in water, achieving a solubility of 660 g/L at 20℃. As a leading supplier and factory in China, we provide high-quality strontium products, ensuring unparalleled purity and performance for various applications.

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    Nuclear Physics Properties

    ⁸⁸Sr has special neutron capture properties:

    • The thermal neutron capture cross section is extremely low (0.058 barn)
    • It is an ideal strontium isotope carrier material in nuclear reactors
    • It is used as a reference standard for accelerator mass spectrometry (AMS) to measure other strontium isotopes

    Quantum Technology Applications

    Ion trap quantum computing
    • ⁸⁸Sr⁺ optical clock transition (674 nm) line width <1 Hz
    • It is used to build optical quantum logic gates
    Precision measurement
    • ⁸⁸Sr lattice clock system uncertainty reaches 2×10⁻¹⁸
    • It is used for gravitational wave detection and relativity testing

    Industrial and Scientific Research Applications

    • Radioactive waste treatment: As a stable strontium carrier to separate ⁸⁹Sr/⁹⁰Sr
    • Isotope dilution analysis: Standard material for geological dating (Rb-Sr method)
    • Electronic materials: High-purity ⁸⁸Sr(NO₃)₂ is used to prepare SrTiO₃ dielectric films

    Material Properties

    • Thermal stability: Decomposition temperature is higher than that of conventional nitrates (>500℃)
    • Optical properties: UV cutoff wavelength 300 nm
    • Chemical activity: Forms insoluble precipitates with oxalates (SrC₂O₄·H₂O)

    Isotope Enrichment Technology

    Main methods for preparing high-purity ⁸⁸Sr(NO₃)₂:

    • 1 Electromagnetic separation method: separation of strontium metal ion sources (purity>99.99%)
    • 2 Chemical exchange method: crown ether/strontium complex isotope fractionation
    • 3 Laser enrichment: Utilizing the unique electronic transition of ⁸⁸Sr (460.7 nm)

    Safety and Operation

    ⁸⁸Sr(NO₃)₂ is a low-toxic compound (LD₅₀>5000 mg/kg), but it must be avoided from contact with reducing agents (may cause explosive decomposition). Store in a dry environment to prevent moisture absorption and agglomeration.

    Conclusion

    As a typical representative of stable strontium isotopes, high-purity strontium nitrate-88 has key application value in quantum technology, nuclear energy safety and materials science. Its excellent nuclear purity and chemical stability make it an important bridge material for the transformation of basic research into engineering technology.

    Frequently Asked Questions

    What makes Strontium-88 (⁸⁸Sr) important in nuclear physics?

    ⁸⁸Sr has an extremely low thermal neutron capture cross section (0.058 barn), making it an ideal strontium isotope carrier material in nuclear reactors and a reference standard for accelerator mass spectrometry (AMS).

    How is ⁸⁸Sr utilized in quantum computing?

    In ion trap quantum computing, the ⁸⁸Sr⁺ optical clock transition (674 nm) features a line width of less than 1 Hz, which is crucial for building high-precision optical quantum logic gates.

    What role does ⁸⁸Sr play in precision measurement?

    It is used in ⁸⁸Sr lattice clock systems, which reach an uncertainty level of 2×10⁻¹⁸. This extreme precision is applied in gravitational wave detection and relativity testing.

    What are the primary industrial applications of high-purity ⁸⁸Sr(NO₃)₂?

    It is used in radioactive waste treatment to separate ⁸⁹Sr/⁹⁰Sr, in isotope dilution analysis as a standard material for geological dating, and in electronics to prepare SrTiO₃ dielectric films.

    What are the main methods for preparing high-purity ⁸⁸Sr(NO₃)₂?

    The three main preparation methods are electromagnetic separation (achieving purity >99.99%), chemical exchange method (using crown ether/strontium complex fractionation), and laser enrichment (utilizing the unique 460.7 nm electronic transition).

    Are there any safety concerns when handling ⁸⁸Sr(NO₃)₂?

    ⁸⁸Sr(NO₃)₂ is a low-toxic compound (LD₅₀ >5000 mg/kg). However, it must be stored in a dry environment to prevent moisture absorption and kept away from reducing agents to avoid explosive decomposition.

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