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44776 Calcium oxide, 99.95% (metals basis)

CAS Number
1305-78-8
Synonyms

Stock No. Size Price ($) Quantity Availability
44776-18 50g 58.80
44776-30 250g 242.00
44776-A1 1kg 868.00
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Calcium oxide, 99.95% (metals basis)

MDL
MFCD00010911
EINECS
215-138-9

Chemical Properties

Formula
CaO
Formula Weight
56.08
Form
-20 Mesh Powder
Melting point
2572°
Boiling Point
2850°
Density
3.37
Refractive Index
1.83
Storage & Sensitivity
Moisture Sensitive. Air Sensitive. Store under Argon. Ambient temperatures.
Solubility
Soluble in water. Insoluble in methanol, diethyl ether and n-octanol.

Applications

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 the 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 and an acid scavenger in several organic transformations, for example, in Arndt-Eistert synthesis of alpha-diazoketones, synthesis of heterocycles and oximes.

Notes

Air and moisture sensitive. Incompatible with acids and water.

Literature References

Gedda, G.; Pandey, S.; Lin, Y. C.; Wu, H. F. Antibacterial effect of calcium oxide nano-plates fabricated from shrimp shells. Green Chem. 2015, 17 (6), 3276-3280.

Bazargan, A.; Kostic, M. D.; Stamenkovic, O. S.; Veljkovic, V. B.; McKay, G. A calcium oxide-based catalyst derived from palm kernel shell gasification residues for biodiesel production. Fuel 2015, 150, 519-525.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H318-H335

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

Precautionary Statements: P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P310-P312-P332+P313-P362-P501c

Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,1686
Hazard Class
8
Packing Group
III
Harmonized Tariff Code
2825.90
TSCA
Yes
RTECS
EW3100000

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