Anhydrous calcium chloride physical and chemical properties

Density 1.086 g/mL at 20 °C

Boiling point 1600 °C

Melting point 772 °C(lit.)

Molecular formula CaCl2

Molecular weight 110.984

Flash point >1600 °C

Precise mass 109.900299

LogP 1.37900

Appearance White solid

Vapor pressure 0.01 mm Hg ( 20 °C)

Refractive index n20/D 1.358

Storage conditions

1. It should be stored in a ventilated and dry warehouse, the packaging container must be sealed to prevent moisture, and stacked separately from dampness.

Stability

1. Stable at room temperature and pressure

2. Avoid moisture, heat and high temperature. Easily soluble in water, ethanol and acetone. Highly hygroscopic and easily deliquescent when exposed to air. Easily soluble in water, while emitting a lot of heat, its aqueous solution is slightly acidic. Soluble in alcohol, acetone, acetic acid. With ammonia or ethanol, CaCL2-8NH3 and CaCL2-4C2H5OH complexes are formed respectively. At room temperature, it is often crystallized from aqueous solution and precipitated as hexahydrate, gradually heated to 30℃, it dissolves in its own water of crystallization, and gradually loses water when it continues to be heated, and becomes dihydrate at 200℃, then heated to 260℃, it becomes white porous anhydrous calcium chloride.

It is easy to absorb moisture. The solubility in 100g of water is 74.5g (20℃), 159g (100℃).

3. At room temperature due to the crystallization of aqueous solution is often a salt of hexahydrate. Heated to 30 ℃, it dissolves in its own crystalline water, continue to heat gradually lose water to 200 ℃ when it becomes a dihydrate salt, and then heated to 260 ℃ is changed to white porous anhydrous calcium chloride. At this time, water and anhydrous calcium chloride, CaO is also generated.

4. Contact with skin will cause corrosion and blistering.

Water solubility 740 g/L (20 ºC)

Calculation chemistry

1、 Calculated reference value of hydrophobic parameter (XlogP): Not determined

2、 Number of hydrogen bond donor: 0

3、 Number of hydrogen bond acceptors: 2

4、 Number of rotatable chemical bonds: 0

5. Topological molecular polar surface area (TPSA): 0

6、 Number of heavy atoms: 3

7、 Surface charge: 0

8、 Complexity: 2.8

9. Number of isotope atoms: 0

10. Number of determined atomic structure centers: 0

11. Number of indeterminate atomic structure centers: 0

12. Number of definite chemical bonding structure centers: 0

13. Uncertain number of bonding centers: 0

14、 Number of covalent bonding units: 3

More

1. Properties: colorless cubic crystal, white or off-white solid (granular, lumpy or powder), slightly bitter taste, no smell.

2. Density (g/mL,25℃): 2.15

3. relative vapor density (g/mL, air=1): not determined

4. Melting point (ºC): 782

5. Boiling point (ºC, atmospheric pressure): 1600

6. boiling point (ºC, 5.2kPa): undetermined

7. refractive index: 1.358

8. Flash point (ºC): >1600

9. specific rotation degree (º): not determined

10. auto-ignition point or ignition temperature (ºC): not determined

11. vapor pressure (kPa,20ºC): 0.0013

12. saturation vapor pressure (kPa,60ºC): undetermined

13. heat of combustion (KJ/mol): undetermined

14. critical temperature (ºC): undetermined

15. critical pressure (KPa): undetermined

16. the logarithmic value of the oil-water (octanol / water) partition coefficient: not determined

17. upper explosion limit (%,V/V): not determined

18. lower explosion limit (%,V/V): not determined

19. solubility: calcium chloride is soluble in water, soluble in alcohols and acetone, acetic acid, formic acid, hydrazine, pyridine, acetamide.