Antimony trioxide (data page)
# Antimony trioxide (data page)

This page provides supplementary chemical data on antimony trioxide.

Also known as $Sb_2O_3.$ It has a melting point of 656 °C, and a boiling point of 1550 °C. It is a Cubic Crystal Structure with a density of 5.2G/Cm3

## Material Safety Data Sheet

* MSDS from SIRI

## Structure and properties

Structure and properties :

| Index of refraction, $n_D$ | ? |
| - | - |
| Dielectric constant, $ε_r$ | ? $ε_0$ 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, $Δ_{fus}H^o$ | ? kJ/mol |
| Std entropy change of fusion, $Δ_{fus}S^o$ | ? J/(mol·K) |
| Std enthalpy change of vaporization, $Δ_{vap}H^o$ | ? kJ/mol |
| Std entropy change of vaporization, $Δ_{vap}S^o$ | ? J/(mol·K) |
| Solid properties ||
| Std enthalpy change of formation, $Δ_fH^o_{solid}$ | ? kJ/mol |
| Standard molar entropy, $S^o_{solid}$ | ? J/(mol K) |
| Heat capacity, $c_p$ | ? J/(mol K) |
| Liquid properties ||
| Std enthalpy change of formation, $Δ_fH^o_{liquid}$ | ? kJ/mol |
| Standard molar entropy, $S^o_{liquid}$ | ? J/(mol K) |
| Heat capacity, $c_p$ | ? J/(mol K) |
| Gas properties ||
| Std enthalpy change of formation, $Δ_fH^o_{gas}$ | ? kJ/mol |
| Standard molar entropy, $S^o_{gas}$ | ? J/(mol K) |
| Heat capacity, $c_p$ | ? J/(mol K) |

## Spectral data

UV-Vis :

| $λ_{max}$ | ? nm |
| - | - |
| Extinction coefficient, ε | ? |
| IR ||
| Major absorption bands | ? $cm^{−1}$ |
| NMR ||
| Proton NMR | |
| Carbon-13 NMR | |
| Other NMR data | |
| MS ||
| Masses of main fragments | |
