Boron trioxide (data page)
This page provides supplementary chemical data on boron trioxide.
Material Safety Data Sheet
Structure and properties
Structure and properties | |
---|---|
Index of refraction, nD | ? |
Abbe number | ? |
Dielectric constant, εr | ? ε0 at ? °C |
Bond strength | ? |
Bond length | ? |
Bond angle | ? |
Magnetic susceptibility | ? |
Thermodynamic properties
Phase behavior | |
---|---|
Triple point | ? K (? °C), ? Pa |
Critical point | ? K (? °C), ? Pa |
Std enthalpy change of fusion, ΔfusH |
? kJ/mol |
Std entropy change of fusion, ΔfusS |
? J/(mol·K) |
Std enthalpy change of vaporization, ΔvapH |
? kJ/mol |
Std entropy change of vaporization, ΔvapS |
? J/(mol·K) |
Solid properties | |
Std enthalpy change of formation, ΔfH |
-1273.5 kJ/mol |
Standard molar entropy, S |
54.0 J/(mol K) |
Heat capacity, cp | 62.8 J/(mol K) |
Liquid properties | |
Std enthalpy change of formation, ΔfH |
? kJ/mol |
Standard molar entropy, S |
? J/(mol K) |
Heat capacity, cp | ? J/(mol K) |
Gas properties | |
Std enthalpy change of formation, ΔfH |
-843.8 kJ/mol |
Standard molar entropy, S |
242.5 J/(mol K) |
Heat capacity, cp | 57.3 J/(mol K) |
Spectral data
UV-Vis | |
---|---|
λmax | ? nm |
Extinction coefficient, ε | ? |
IR | |
Major absorption bands | ? cm−1 |
NMR | |
Proton NMR | |
Carbon-13 NMR | |
Other NMR data | |
MS | |
Masses of main fragments |
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References
Except where noted otherwise, data relate to standard ambient temperature and pressure.
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