Boron carbide Guide, Meaning , Facts, Information and Description
| Boron_carbide | |
| General | |
|---|---|
| Chemical formula | B4C |
| Molecular weight | 55.25 amu |
| Appearance | Dark gray or black solid or powder. |
| CAS number | 12069-32-8 (B4-C) |
| MSDS | |
| Other names | |
| |
| Physical properties | |
| Density and phase at STP | ? g/cm3 (?) |
| Solubility | None |
| Specific gravity | 2.51 |
| Crystal structure | Rhombohedral |
| Thermal decomposition | ? K (? °C) |
| Phase behavior | |
| Melting point | 2,623 K (2,350° C) |
| Boiling point | 3,773 K (3,500° C) |
| Triple point | ? K (? °C) ? bar |
| Critical point | ? K (? °C) ? bar |
| Heat of fusion (ΔfusH) | ? kJ/mol |
| Entropy of fusion (ΔfusS) | ? J/mol·K |
| Heat of vaporization (ΔvapH) | ? kJ/mol |
| Safety | |
| Ingestion | ? |
| Inhalation | ? |
| Skin | ? |
| Eyes | ? |
| OSHA Permissible Exposure Limit (PEL) | ? ppm |
| NIOSH Immediate Danger to Life and Health (IDLH) | ? ppm |
| Precautions | |
| |
| Solid properties | |
| Standard enthalpy change of formation (ΔfH0solid) | -62.68 kJ/mol |
| Standard molar entropy (S0solid) | 26.77 J/mol·K |
| Heat capacity (Cp) | ? J/mol·K |
| Density | ? g/cm3 |
| Liquid properties | |
| ΔfH0liquid | 51.88 kJ/mol |
| S0liquid | 69.21 J/mol·K |
| Cp | ? J/mol·K |
| Density | ? g/cm3 |
| Gas properties | |
| ΔfH0gas | ? kJ/mol |
| S0gas | ? J/mol·K |
| Cp | ? J/mol·K |
| Except where noted, all data was produced under conditions of standard temperature and pressure. | |
This is an Article on Boron carbide. Page Contains Information, Facts Details or Explanation Guide About Boron carbide Applications
See Also