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1305-78-8 - Calcium oxide, Puratronic®, 99.998% (metals basis, excluding other alkaline earth and alkali metals 130ppm max) - 10684 - Alfa Aesar

10684 Calcium oxide, Puratronic®, 99.998% (metals basis, excluding other alkaline earth and alkali metals 130ppm max)

Número CAS
Nombre Alternativo

Tamaño Precio ($) Cantidad Disponibilidad
2g 34,00
10g 116,00
50g 404,00
250g 1716,00
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Calcium oxide, Puratronic®, 99.998% (metals basis, excluding other alkaline earth and alkali metals 130ppm max)


Propiedades químicas

Peso molecular
Punto de fusión
Punto de ebullición
Índice de refracción
Air & Moisture Sensitive
Slightly soluble in water. Insoluble in ethanol. Soluble in glycerol.


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 finds use in water softeners, chemical recovery at Kraft pulp mills, biodiesel production, and in petroleum industry for the detection of traces of water. In agriculture it is used to restore the pH of acidic soils (liming). It is useful as a basic catalyst & acid scavenger in several organic transformations, for example, in Arndt-Eistert Synthesis of alpha-diazoketones, synthesis of heterocycles and oximes.


Reaction of calcium oxide with water is highly exothermic, & can ignite combustible materials. The aqueous solution of calcium oxide spontaneously reacts with carbon dioxide from air to form calcium carbonate.

Referencias documentales

Ibrahim, H.; Ahmed, A. S.; Bugaje, I.; Mohammed-Dabo; Ugwumma, C. D. Synthesis of Bulk Calcium Oxide (Cao) Catalyst and its Efficacyfor Biodiesel Production. J. Energ. Tech. Pol. 2013, 3 (12), 14-16.

Pramanik, S.; Kamal K. K. Nanohydroxyapatite Synthesized from Calcium Oxide and its Characterization. Int. J. Adv. Manuf. Tech. 2013, 66 (5-8), 1181-1189.

Safaei-Ghomi, J.; Ghasemzadeh, M. A.; Mehrabi, M. Calcium oxide nanoparticles catalyzed one-step multicomponent synthesis of highly substituted pyridines in aqueous ethanol media. Scientia Iranica 2013, 20 (3), 549-554.

Pace, V.; Verniest, G.; Sinisterra, J.-V.; Alcántara, A. R.; De Kimpe, N. Improved Arndt-Eistert Synthesis of α-Diazoketones Requiring Minimal Diazomethane in the Presence of Calcium Oxide as Acid Scavenger. J. Org. Chem. 2010, 75, 5760-5763.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H315-H318-H335

Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.

Indicaciones de precaución: P261-P280a-P305+P351+P338-P304+P340-P310a-P321-P332+P313-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Specific treatment (see label). If skin irritation occurs: Get medical advice/attention. Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Otras referencias

Clase de peligro
Grupo de embalaje
Código de tarifa arancelaria unificado


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