Calcium Oxide CAS#1305-78-8

Calcium Oxide CAS#1305-78-8

Calcium Oxide CAS#1305-78-8

High Reactivity: Calcium oxide reacts quickly with water and carbon dioxide, forming useful compounds like hydrated lime and limestone.


Natural Purity:Derived from natural sources such as limestone, calcium carbonate, and oyster shells, ensuring high-quality raw material.


High-Temperature Stability:Produced through calcination at 1,700–2,450℃, providing excellent thermal stability and performance.


Versatile Applications:Widely used in industries due to its chemical reactivity and adaptability for various processing needs.

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Rigorous quality control and full regulatory compliance assured.

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Product Description

Product Description-Calcium Oxide CAS#1305-78-8


Calcium oxide (CaO, CAS 1305-78-8), also known as quicklime, is not found naturally. It readily reacts with water to form slaked lime and with CO₂ to produce limestone. It is manufactured by calcining calcium carbonate sources like limestone or oyster shells at 1700–2450°C.

Product Applications-Calcium Oxide CAS#1305-78-8


Lime is widely used in metallurgy, flue gas desulfurization, construction, mining, papermaking and water treatment. In iron ore smelting, CaO removes impurities by reacting with silicates, phosphates and sulfates to form slag.

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Product Data

Chemical Properties-Calcium Oxide CAS#1305-78-8



Melting point

2570 °C

Boiling point

2850 °C (lit.)

Density

3.3 g/mL at 25 °C (lit.)

Bulk density

800-1200kg/m3

Refractive index

1.83

Fp

2850°C

Storage temp

no restrictions

Solubility

1.65g/l Risk of violent reaction

Form

powder

Color

White to yellow-very slightly beige

Specific Gravity

3.3

PH

12.6 (H2O, 20℃)(saturated solution)

Odor

wh. or gray cryst. or powd., odorless

Water Solubility

REACTS

Sensitive

Air & Moisture Sensitive

Crystal Structure

Cubic

Crystal system

Cube

Merck

14,1686

Space group

Fm3m

Lattice constant

a/nmb/nmc/nmα/oβ/oγ/oV/nm30.47760.47760.47769090900.1089

Dielectric constant

2.2(Ambient)

Exposure limits

ACGIH: TWA 2 mg/m3OSHA: TWA 5 mg/m3NIOSH: IDLH 25 mg/m3; TWA 2 mg/m3

Stability

Stability Stable, but absorbs carbon dioxide from the air. Incompatible with water, moisture, fluorine, strong acids.

InChIKey

ODINCKMPIJJUCX-UHFFFAOYSA-N

CAS DataBase Reference

1305-78-8(CAS DataBase Reference)

NIST Chemistry Reference

Calcium monoxide(1305-78-8)

EPA Substance Registry System

Calcium oxide (1305-78-8



Safety Information-Calcium Oxide CAS#1305-78-8



Hazard Codes

C,Xi

Risk Statements

34-41-37/38

Safety Statements

26-36/37/39-45-25-39

OEB

B

OEL

TWA: 2 mg/m3

RIDADR

UN 1910

WGK Germany

1

RTECS

EW3100000

F

10-21-34

TSCA

TSCA listed

HazardClass

8

PackingGroup

III

HS Code

28259019

Storage Class

13 - Non Combustible Solids

Hazard Classifications

Eye Dam. 1Skin Irrit. 2STOT SE 3

Hazardous Substances Data

1305-78-8(Hazardous Substances Data)

IDLH

25 mg/m3


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