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10923 Calcium oxide, 99.95% (metals basis)

CAS Number
1305-78-8
Synonyms

Stock No. Size Price ($) Quantity Availability
10923-18 50g 62.10
10923-30 250g 248.00
10923-A1 1kg 787.00
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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
<10 Micron APS 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
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: H315-H318-H335

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

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P310-P312-P332+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. 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
Harmonized Tariff Code
2825.90
TSCA
Yes
RTECS
EW3100000

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