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CAS 1305-78-8

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Calcium oxide

Description:
Calcium oxide, commonly known as quicklime, is an inorganic compound with the chemical formula CaO and a CAS number of 1305-78-8. It is a white, caustic solid that is produced by the thermal decomposition of calcium carbonate (limestone) in a process known as calcination. Calcium oxide is highly reactive, particularly with water, forming calcium hydroxide, or slaked lime, which is an exothermic reaction. This compound is characterized by its high melting point and strong basicity, making it an effective alkaline agent. It is widely used in various industrial applications, including steelmaking, construction, and environmental processes such as water treatment and soil stabilization. Additionally, calcium oxide plays a role in the production of cement and glass. Due to its caustic nature, it can cause irritation to skin and eyes, necessitating appropriate safety measures during handling. Overall, calcium oxide is a versatile compound with significant importance in both industrial and environmental chemistry.
Formula:CaO
InChI:InChI=1/Ca.O/q+2;-2
InChI key:InChIKey=ODINCKMPIJJUCX-UHFFFAOYSA-N
SMILES:[Ca]=O
Synonyms:
  • Airlock
  • Bellcml
  • Bellcmle
  • Borumikku
  • Burnedlime
  • Burntlime
  • Burntlime[Qr]
  • CSQ
  • Calcia
  • Calcia[Qr]
  • See more synonyms
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Found 13 products.
  • Calcium oxide, Puratronic™, 99.998% (metals basis, excluding other alkaline earth and alkali metals 130ppm max)

    CAS:
    <p>Calcium oxide has wide-ranging utility in industry. It is used in making porcelain, cements, mortars, and glass. It is also employed in flue-gas desulfurization in power plants, purifying sugar, drying the solvents/reagents, preparing bleaching powder, calcium carbide, and calcium cyanamide. It also</p>
    Formula:CaO
    Purity:99.998%
    Molecular weight:56.08

    Ref: 02-010684

    2g
    74.00€
    10g
    185.00€
    50g
    685.00€
    250g
    To inquire
  • Calcium oxide, 99.95% (metals basis)

    CAS:
    <p>It is used in cement, glass, steel, paper, chemical and petroleum industries. It acts as a key ingredient in the process of cement making. It is widely used industrially as a dehydrating agent and an absorbent. Further it finds use as a water softener and as a pH regulator for wastewater. It is </p>
    Formula:CaO
    Purity:99.95%
    Color and Shape:Powder
    Molecular weight:56.08

    Ref: 02-010923

    1kg
    874.00€
    50g
    82.00€
    250g
    259.00€
  • Calcium oxide, Reagent Grade

    CAS:
    <p>Polyethylene oxide is used as lubricants for rubber molds, textiles, metalworking and ceramics production. Further, it is used in food packaging, water-based paints, polishes, paper coatings, dispersing agents and chemical intermediates. In addition, it is used to impart viscosity to and modify the </p>
    Formula:CaO
    Molecular weight:56.08

    Ref: 02-033299

    2kg
    To inquire
    500g
    88.00€
  • Calcium oxide nanopowder, min. 99.9%, 30-200 nm

    CAS:
    <p>Calcium oxide nanopowder, min. 99.9%, 30-200 nm</p>
    Formula:CaO
    Purity:min. 99.9%
    Color and Shape:white pwdr.
    Molecular weight:56.08

    Ref: 08-20-4000

    10g
    134.00€
    50g
    498.00€
  • Calcium oxide

    CAS:
    Formula:CaO
    Purity:≥ 92.0%
    Color and Shape:White to off-white powder or granular solid
    Molecular weight:56.08

    Ref: 7W-GX1175

    1kg
    79.00€
    5kg
    253.00€
    500g
    44.00€
    250kg
    2,166.00€
  • Calcium oxide

    CAS:
    Calcium oxide
    Purity:99.95% metals basis
    Color and Shape:White Powder
    Molecular weight:56.08g/mol

    Ref: 54-IN1391

    5g
    37.00€
    25g
    39.00€
    100g
    59.00€
    500g
    173.00€
    250kg
    15,358.00€
  • Calcium oxide max. 10 microm, 99.99%

    CAS:
    Formula:CaO
    Molecular weight:56.08

    Ref: 7W-GX5050

    10g
    150.00€
    50g
    374.00€
  • Calcium oxide, 99.95%

    CAS:
    Formula:CaO
    Purity:≥ 99.95%
    Color and Shape:White to almost white powder or crystals
    Molecular weight:56.08

    Ref: 7W-GX3058

    50g
    221.00€
  • Calcium Oxide

    CAS:
    <p>Applications Calcium Oxide is an exothermic reagent used in the synthesis of polymers and ceramics.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Lee, S. et al.: Mat. Lett., 175, 135 (2016); Dae, J. et al.: J. App. Polym. Sci., 133, (2016);<br></p>
    Formula:CaO
    Color and Shape:White
    Molecular weight:56.077

    Ref: TR-C145650

    5g
    96.00€
    25g
    111.00€
    50g
    156.00€
  • Calcium oxide

    Controlled Product
    CAS:
    <p>Calcium oxide is a chemical compound that is used in the process of wastewater treatment. It removes phosphorus from sewage by forming insoluble calcium phosphate and prevents the release of phosphate into natural waterways. Calcium oxide also has been shown to remove chromium, nickel, copper, and zinc from wastewater. The removal of these metals may be due to the oxidation of metal hydroxides which are then precipitated by calcium oxides or through the formation of insoluble metal oxides. Calcium oxide can also be used to remove potassium dichromate from water vapor. Calcium oxide is an oxidizing agent that can react with metals at high temperatures and can be used as a catalyst for many reactions. The activity index for calcium oxide ranges between 1-3 and its surface methodology is Langmuir adsorption isotherm.</p>
    Formula:CaO
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:56.08 g/mol

    Ref: 3D-FC07719

    1kg
    467.00€
    2kg
    829.00€
    5kg
    1,898.00€
    250g
    254.00€
    500g
    344.00€
  • Calcium oxide, 98%

    CAS:
    <p>Calcium oxide, 98%</p>
    Formula:CaO
    Purity:98%
    Color and Shape:white pwdr.
    Molecular weight:56.08

    Ref: 08-93-2031

    1kg
    165.00€
    250g
    57.00€
  • Calcium oxide (99.95%-Ca)

    CAS:
    <p>Calcium oxide (99.95%-Ca)</p>
    Formula:CaO
    Purity:(99.95%-Ca)
    Color and Shape:-325 mesh white pwdr.
    Molecular weight:56.08

    Ref: 08-20-2030

    10g
    39.00€
    50g
    138.00€
  • Calcium Oxide Powder pure, 95%

    CAS:
    Formula:CaO
    Purity:min. 95%
    Color and Shape:Off-White, Powder
    Molecular weight:56.08

    Ref: SR-16807

    5kg
    Discontinued
    500g
    Discontinued
    Discontinued product