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CAS 7440-70-2

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Cálcio

Descrição:
Cálcio, com o símbolo químico Ca e o número CAS 7440-70-2, é um metal alcalino-terroso que é essencial para vários processos biológicos e industriais. É um metal macio, branco-prateado, que é relativamente reativo, particularmente com água e ácidos, formando hidróxido de Cálcio e gás hidrogênio. Em sua forma elementar, Cálcio é tipicamente encontrado na natureza como parte de compostos, como o carbonato de Cálcio em calcário e o sulfato de Cálcio em gesso. Tem um ponto de fusão de cerca de 842 graus Fahrenheit (450 graus Celsius) e um ponto de ebulição de aproximadamente 1.470 graus Fahrenheit (800 graus Celsius). Cálcio desempenha um papel crucial nos sistemas biológicos, particularmente na formação de ossos e dentes, bem como na contração muscular e na função nervosa. Em aplicações industriais, é usado em metalurgia, como agente redutor na extração de outros metais, e na produção de cimento e cal. Devido à sua reatividade, Cálcio deve ser armazenado sob óleo ou em uma atmosfera inerte para evitar oxidação.
Fórmula:Ca
InChI:InChI=1S/Ca
Chave InChI:InChIKey=OYPRJOBELJOOCE-UHFFFAOYSA-N
SMILES:[Ca]
Sinónimos:
  • Alcaplant
  • Aquacal
  • Asp 1250
  • Atomic calcium
  • Blood-coagulation factor IV
  • Calcio
  • Calcium Crystals
  • Calcium KM
  • Calcium atom
  • Calcium element
  • Ver mais sinónimos
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13 produtos.
  • Calcium turnings, 98% (metals basis)

    CAS:
    <p>This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci</p>
    Fórmula:Ca
    Pureza:98%
    Peso molecular:40.08

    Ref: 02-010125

    10g
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    100g
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  • Calcium granules, -9 mesh, 98.8% (metals basis)

    CAS:
    <p>This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci</p>
    Fórmula:Ca
    Pureza:98.8%
    Peso molecular:40.08

    Ref: 02-041653

    1kg
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    50g
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    250g
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  • Calcium ingot, 97% (metals basis)

    CAS:
    <p>This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci</p>
    Fórmula:Ca
    Pureza:97%
    Peso molecular:40.08

    Ref: 02-010128

    700g
    A consultar
  • Calcium crystalline dendritic pieces, 99.98% (metals basis)

    CAS:
    <p>This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci</p>
    Fórmula:Ca
    Pureza:99.98%
    Cor e Forma:Silver to white, Pieces
    Peso molecular:40.08

    Ref: 02-014457

    5g
    A consultar
    25g
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  • Calcium granules, redistilled, -16 mesh, 99.5% (metals basis)

    CAS:
    <p>This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci</p>
    Fórmula:Ca
    Pureza:99.5%
    Peso molecular:40.08

    Ref: 02-042917

    10g
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    50g
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    250g
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  • Calcium granules, redistilled, -6 mesh, 99.5% (metals basis)

    CAS:
    <p>This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci</p>
    Fórmula:Ca
    Pureza:99.5%
    Cor e Forma:Granules, -6 mesh (<3.36 mm)
    Peso molecular:40.08

    Ref: 02-000875

    1kg
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    250g
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  • Calcium turnings (99%)

    CAS:
    <p>Calcium turnings (99%)</p>
    Fórmula:Ca
    Pureza:(99%)
    Cor e Forma:turnings
    Peso molecular:40.08

    Ref: 08-93-2077

    50g
    90,00€
    250g
    349,00€
  • Calcium, crystalline, dendritic (99.99%)

    CAS:
    <p>Calcium, crystalline, dendritic (99.99%)</p>
    Fórmula:Ca
    Pureza:(99.99%)
    Cor e Forma:ampouled under argon
    Peso molecular:40.08

    Ref: 08-20-0074

    5g
    458,00€
    25g
    1.738,00€
  • Calcium Granules -6 mesh, 99.5%

    CAS:
    Fórmula:Ca
    Pureza:≥ 99.5%
    Cor e Forma:Silver-white to grey granules
    Peso molecular:40.08

    Ref: 7W-GX0580

    100g
    390,00€
  • Calcium Granules 2-6 mm, 98.5+%

    CAS:
    Fórmula:Ca
    Pureza:≥ 98.5%
    Cor e Forma:Grey granules
    Peso molecular:40.08

    Ref: 7W-GX1137

    100g
    224,00€
  • Calcium

    Produto Controlado
    CAS:
    <p>Calcium is a chemical element with the symbol Ca and atomic number 20. It has an atomic weight of 40.078, which means that it is 40.078 times heavier than hydrogen. Calcium is an alkaline earth metal, as are magnesium and barium. Calcium is classified as a hard metal because it has a high melting point and its oxide layer resists corrosion by water and air. The ionized form of calcium (Ca2+) may be found in the cytosol, or in transport vesicles in muscle cells or other types of cells such as those of the intestine or bone cells. The main biological role of calcium ions is to maintain the potential difference across excitable cell membranes, enabling normal nerve transmission and muscle contraction, including the contraction of heart muscles. The concentration of calcium ions in extracellular fluid is tightly regulated by the kidneys under instruction from parathyroid hormone (PTH) and calcitonin hormones to keep blood calcium levels within a narrow range</p>
    Fórmula:Ca
    Pureza:Min. 95%
    Cor e Forma:Metal Or Metallic Solid
    Peso molecular:40.08 g/mol

    Ref: 3D-FC34853

    25g
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    50g
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    100g
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    250g
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    500g
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  • Calcium granules (99.5%)

    CAS:
    <p>Calcium granules (99.5%)</p>
    Fórmula:Ca
    Pureza:(99.5%)
    Cor e Forma:-6 mesh
    Peso molecular:40.08

    Ref: 08-93-2075

    100g
    90,00€
    500g
    345,00€
  • Calcium Metal Granular extrapure, 98%, 10-20 mesh

    CAS:
    Fórmula:Ca
    Pureza:min. 98.0%
    Cor e Forma:Gray, Granules
    Peso molecular:40

    Ref: SR-96342

    5kg
    Descontinuado
    100g
    Descontinuado
    500g
    Descontinuado
    Produto descontinuado