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Send EmailCalcium Metal, Metallic Calcium, Elemental Calcium, Deoxidizer Calcium, 7440-70-2
Calcium Metal (CAS No: 7440-70-2), tailored for sectoral and technical use:
🔬 Physical & Chemical Properties
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Symbol: Ca
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Atomic Number: 20
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Atomic Weight: 40.078 g/mol
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Density: 1.55 g/cm³ (light metal)
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Melting Point: 842 °C
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Boiling Point: 1484 °C
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Appearance: Silvery-white to pale gray metal
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Reactivity: Rapidly oxidizes in air and reacts with water to release hydrogen gas
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Storage: Must be kept under inert gas (argon) or mineral oil to prevent oxidation
🌍 Occurrence in Nature
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Found in minerals such as calcite, aragonite, dolomite, limestone, and marble
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Fifth most abundant element in the Earth’s crust
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In the human body, calcium is essential for bones and teeth (as hydroxyapatite, Ca₁₀(PO₄)₆(OH)₂)
⚙️ Industrial Applications
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Metallurgy: Used as a deoxidizer in steel production and as an alloying agent
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Chemical Industry: Strong reducing agent for producing metals like zirconium, thorium, and uranium
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Construction: Present in compounds (cement, plaster, lime) rather than pure metal
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Food & Pharmaceuticals: Calcium compounds (carbonate, chloride, phosphate) are used as supplements and additives
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Electronics: Acts as a getter in vacuum tubes to remove residual gases
🧬 Biological Importance
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Bone & Teeth Health: Major component of hydroxyapatite
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Muscle Contraction: Calcium ions trigger contraction in muscle fibers
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Nerve Transmission: Regulates neurotransmitter release at synapses
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Blood Clotting: Essential for activation of clotting factors
📊 Sectoral Suitability Table
| Sector / Industry | Application / Suitability | Notes |
|---|---|---|
| Metallurgy | Steel deoxidizer, alloying agent | Requires inert storage |
| Chemical Industry | Reducing agent, production of reactive metals | High purity needed |
| Construction Materials | Cement, plaster, lime (as compounds) | Pure metal not used |
| Food & Pharma | Supplements, additives (CaCO₃, CaCl₂) | Only compounds are suitable |
| Electronics | Getter in vacuum tubes | Used in controlled environments |
| Agriculture | Fertilizers (Ca phosphates, Ca nitrates) | Compounds only |
| Biomedical | Natural component of bones and teeth | Active in ionic form, not metallic |
⚠️ Safety Considerations
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Pure calcium metal is highly reactive and unsuitable for direct biological or food use.
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Must be handled under controlled conditions to avoid oxidation and hydrogen release.
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Industrial use is mostly limited to metallurgy and chemical reduction processes.
📖 Synonyms & Alternative Names
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Calcium
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Elemental Calcium
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Metallic Calcium
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Calcium Metal
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Ca (chemical symbol)
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Calcium, metallic (used in scientific/technical contexts)
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Calcium metal granules / lumps / ingots (commercial trade forms)
📊 Sectoral Usage Terminology
| Sector / Industry | Common Names Used |
|---|---|
| Metallurgy | Calcium metal, Metallic calcium, Deoxidizer calcium |
| Chemical Industry | Elemental calcium, Calcium lumps, Calcium granules |
| Trade / ERP | Ca metal, Calcium metal, CAS 7440-70-2 |
| Scientific Literature | Calcium (element), Ca (symbol), Atomic number 20 |
