Factory Supply High QualityCalcium Oxide 99% Solid CAS1305-78-8

Use of calcium oxide
1. Used as building materials and metallurgical flux, it is the main raw material for the manufacture of calcium hydroxide and various calcium compounds, and is also a cheap base in the chemical industry. Widely used in pesticide, papermaking, food, petrochemical, tanning and wastewater purification. Used as a cement accelerator in construction.

2. Used as analytical reagent, spectral analysis reagent, phosphor flux, vegetable oil decolorizing agent, and carbon dioxide absorber in gas analysis. High purity reagents are used in epitaxy and diffusion processes in semiconductor production.

3. Used as the filler of epoxy adhesive, it can prepare agricultural machinery 1, 2 adhesive and underwater epoxy adhesive. It is also used as a reaction agent for pre-reaction with 2402 resin. Lime has strong moisture absorption and is a cheap desiccant and alcohol dehydrating agent. It is widely used as a building material, as a metallurgical flux, acid wastewater treatment and sludge conditioning. It is a cheap alkali in the chemical industry and is widely used in agriculture, paper making, petrochemical, metal processing, leather, food, pharmaceutical and other industries. It can also be used as a boiler deactivation protective agent, using the moisture absorption ability of lime to keep the metal surface of the boiler water vapor system dry and prevent corrosion, which is suitable for long-term deactivation protection of low pressure, medium pressure and small capacity drum boilers.

4. Used in construction, and used in the manufacture of calcium carbide, liquid alkali, bleaching powder and gypsum. The laboratory is used for the drying of ammonia and dehydration of alcohol.

Physical and chemical properties of calcium oxide
Density 3.3 g/mL at 25 °C(lit.)
Boiling point 2850 °C(lit.)
Melting point 2570 °C
Molecular formula CaO
Molecular weight 56.077
Flash point 2850°C
Accurate mass 55.957504
PSA 17.07000
Appearance White to gray solid
Refractive index 1.83
Storage condition
Storage Precautions Store in a cool, ventilated warehouse. Packaging must be completely sealed to prevent moisture absorption. It should be stored separately from easy (can) combustibles and acids, and should not be mixed. Storage areas should be equipped with suitable materials to contain leaks.

stability
1. Placed in the air, it can absorb water and carbon dioxide in the air to generate calcium hydroxide and calcium carbonate. Interaction with water (called digestion) produces calcium hydroxide and gives off heat (the product is strongly alkaline).

2. Stability Stability

3. Water and acids are forbidden

4. Avoid contact with humid air conditions

5. Aggregation harms non-aggregation

Water solubility REACTS
Molecular structure
1, molar refractive index: not useful

2, molar volume (cm3/mol) : no use

3, isotonic specific volume (90.2K) : not available

4, surface tension (dyne/cm) : no use

5, dielectric constant: no use

6, polarizability (10-24cm3) : not available

7. Single isotope mass: 55.957506 Da

8. Nominal quality: 56 Da

9. Average quality: 56.0774 Da

Computational chemistry
1. Reference value for calculating hydrophobic parameters (XlogP) : None

2. Number of hydrogen bond donors :0

3. Number of hydrogen bond receptors :1

4. Number of rotatable chemical bonds :0

5. Number of tautomers: None

6. Topological molecular polar surface area 17.1

7. Number of heavy atoms :2

8. Surface charge :0

9. Complexity :2

10. Number of isotope atoms :0

11. Determine the number of protonic centers :0

12. Number of uncertain atomic stereocentes :0

13. Determine the number of chemical bond structure centers :0

14. Number of uncertain chemical bond stereocenter :0

15. Number of covalent bond units :1

more
1. Properties: white amorphous powder, gray or light yellow when containing impurities, with hygroscopicity.

2.pH value: 12.8 (saturated aqueous solution)

3. Melting point (℃) : 2570

4. Boiling point (℃) : 2850

5. Relative density (water =1) : 3.2~3.4

6. Solubility: insoluble in ethanol, soluble in acid, glycerin.