Cobalt CAS7440-48-4

Details:

Density 8.92
Boiling point 2900 ° C (lit.)
Melting point 1495 ° C
Molecular formula Co
Molecular weight 58.93320
Accurate quality 58.93320
Appearance: Gray or orange powder, or silver solid
Storage conditions
Store in closed containers and in a cool and ventilated warehouse. It should be stored separately from oxidants and acids, and mixed storage should be avoided.
Stability
1. Metal radius 125.3 picometers, first ionization energy 763kJ/mol, electronegativity 1.8. Stable to air and water at room temperature. Avoid contact with strong acids, oxidizing agents, air, and halogenated compounds.
Glossy gray white metal, stable allotrope at room temperature with hexagonal compact structure（ α- Variant), β- The variant is a face centered cubic structure, which can also exist at room temperature, α- Variants and β- The transition point of the variant is (417 ± 7) ℃. Cobalt is a ferromagnetic metal with a high Curie point, reaching 1121 ℃.
2. Cobalt is not easily oxidized at room temperature and cannot react directly with hydrogen or ammonia. It can react with carbon, phosphorus, and sulfur under heating
Insoluble in water
Computational Chemistry
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond receptors: 0
4. Number of rotatable chemical bonds: 0
5. Number of tautomers: None
6. Topological molecule polarity surface area 0
7. Number of heavy atoms: 1
8. Surface charge: 0
9. Complexity: 0
10. Number of Isotope Atoms: 0
11. Determine the number of atomic structure centers: 0
12. Number of uncertain atomic structure centers: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1