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    • Strontium Carbonate CAS 1633-05-2

    Strontium Carbonate CAS 1633-05-2

    Strontium Carbonate (SrCO₃), CAS 1633-05-2, is a high-purity inorganic carbonate supplied in electronic, magnetic and industrial grades for strontium ferrite magnets, electronic ceramics, specialty glass, glazes, pyrotechnics and metallurgy. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 1633-05-2
    • Synonyms: Carbonic acid strontium salt, Strontium(II) carbonate, Strontianite, Strontium salt of carbonic acid
    • Einecs: 216-643-7
    • Molecular Formula: SrCO₃
    • Grade: Electronic Grade, Magnetic Grade, Industrial Grade
    • Package: 25kg/bag (multi-layer paper or PP/PE), 500kg or 1000kg jumbo bags.
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    Product Description

    Strontium Carbonate, CAS 1633-05-2, also known as strontium(II) carbonate, is the inorganic carbonate salt SrCO₃; the EC/EINECS number is 216-643-7.

    Synonyms: carbonic acid strontium salt; strontium(II) carbonate; strontianite; strontium salt of carbonic acid.

    CAS: 1633-05-2.

    Molecular formula: SrCO₃.

    Molecular weight: 147.63 g/mol.

    EC number: 216-643-7.

    It is an odorless, tasteless white fine powder with controlled particle-size distributions (D50).

    Electronic grade is typically at least 99.0% SrCO₃, with strict control of alkali metals and heavy-metal impurities.

    High-purity grade is typically at least 99.5% SrCO₃ with lower barium, calcium and iron limits.

    It is used in strontium ferrite permanent magnets, PTC thermistors, varistors and multilayer ceramic capacitors.

    It is used in specialty glass, optical glass and display panels for X-ray shielding and improved refractive index.

    It is used as a red-flame colorant in pyrotechnics, flares and signal devices.

    It is used in metallurgy as a flux and in the production of other strontium compounds and nanomaterials.

    Confirm SrCO₃ content, barium, calcium, iron, chloride, moisture, acid-insoluble matter, bulk density and D50 or particle-size distribution.

    Store in original sealed packaging in a cool, dry, ventilated area to prevent moisture absorption and caking.

    Keep away from strong acids, which release carbon dioxide and form soluble strontium salts; store on pallets.

    Confirm packaging with the requested quantity and destination requirements.

    The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

    For an RFQ, state the intended use, required grade, quantity, packaging, destination and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Strontium Carbonate CAS 1633-05-2?

      A: Strontium carbonate is an inorganic carbonate salt with the formula SrCO3. It is supplied as a white powder or granular solid and used in strontium ferrite magnets, electronic ceramics, specialty glass, glazes, pyrotechnics and metallurgical processing.
    • Q:

      Why is Strontium Carbonate used in permanent magnets?

      A: It is a key raw material for strontium ferrite permanent magnets. Strontium ferrite provides useful magnetic performance, corrosion resistance and cost efficiency in motors, speakers, sensors and other magnetic components.
    • Q:

      What electronic components use Strontium Carbonate CAS 1633-05-2?

      A: Electronic-grade strontium carbonate is used in PTC thermistors, multilayer ceramic capacitors and other ceramic dielectric materials. Its purity, particle-size distribution and controlled trace-metal levels are important for consistent sintering and electrical performance.
    • Q:

      How should I choose between electronic, magnetic and industrial grades?

      A: Electronic and magnetic grades normally require tighter control of barium, calcium, iron, alkali metals and heavy metals. Industrial grade may be acceptable for glass, glazes or general chemical use, but the grade should be selected against the purity and particle-size requirements of the process.
    • Q:

      What are the main non-electronic applications of strontium carbonate?

      A: It is used in specialty glass and glazes, red-flame pyrotechnics and signal flares, fluorescent glass, zinc electrolyte purification and production of other strontium compounds. Its strontium content also creates the characteristic red flame color in pyrotechnics.
    • Q:

      Which specifications should I check before ordering Strontium Carbonate?

      A: Confirm SrCO3 content, barium, calcium, iron, chloride, moisture, acid-insoluble matter, bulk density and D50 or particle-size distribution. High-purity electronic applications may need additional trace-metal and alkali-metal limits.

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