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1305-78-8 - Calcium oxide, 99.95% (metals basis) - 10923 - Alfa Aesar

10923 Calcium oxide, 99.95% (metals basis)

CAS Number
1305-78-8
Synonyms

Size Price ($) Quantity Availability
50g 59.38
250g 237.45
1kg 756.02
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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
<10 Micron APS Powder
Melting point
2572°
Boiling Point
2850°
Density
3.37
Refractive Index
1.83
Sensitivity
Air & Moisture Sensitive
Solubility
Slightly soluble in water. Insoluble in methanol

Applications

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 useful to detect traces of water in hydrocarbons, and in flue-gas desulfurization.

Notes

It is incompatible with strong oxidizing agents, acids, carbon dioxide, chlorine trifluoride, fluorine, halogens, phosphoruspentoxide, calcium chloride, metal halides, hydrofluoric acid, hydrogen fluoride, ethanol, and boron trifluoride.

Literature References

Granados, M. L.; Poves, M. D. Z.; Alonso, D. M.; Mariscal, R.; Galisteo, F. C.; Moreno-Tosta, R.; Santamaría, J.; Fierro, J. L. G. Biodiesel from Sunflower Oil by Using Activated Calcium oxide. Appl. Catal. G-Environ. 2007, 73 (3-4), 317-326.

Kouzu, M.; Kasuno, T.; Tajika, M.; Yamanaka, S.; Hidaka, J. Active Phase of Calcium Oxide Used as Solid Base Catalyst for Transesterification of Soybean Oil with Refluxing Methanol. Appl. Catal. A-Gen. 2008, 334 (1-2), 357-365.

GHS Hazard and Precautionary Statements

Hazard Statements: H318-H315-H335

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

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P310-P362-P312-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/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. Immediately call a POISON CENTER or doctor/physician. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. 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.

Other References

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

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