| Formula / Notation | As2O3 |
|---|---|
| CAS Number | 1327-53-3 |
| Molecular Weight | 197.841 |
| Melting Point | 379 to 594.1 °F ; Arsenolite and claudetite forms sublime at 379 °F. (EPA, 1998) |
| Boiling Point | 869 °F at 760 mmHg (EPA, 1998) |
| Density | 3.738 amorphous or vitreous; 3.865 arsenolite; 4.15 claudetite (EPA, 1998) |
| Solubility | 17000 mg/L (at 16 °C) |
| Appearance | Arsenic trioxide appears as white or transparent, glassy amorphous lumps or crystalline powder. Slightly soluble in water, but dissolves very slowly; more soluble in hot water. Noncombustible. Corr... |
| Also Known As | bis(arsenic(3+));tris(oxygen(2-)); Arsenic oxide (As2O3); Arsentrioxide; Arseni trioxydum; Arsenious trioxide; Claudetite; Trixenox; Oxyde Arsenieux; Arsenious Acid Anhydride; Acide arsenieux |
| Category | Inorganic Compounds |
What is Arsenic trioxide?
Arsenic trioxide (As2O3) is an inorganic compound that appears as Arsenic trioxide appears as white or transparent, glassy amorphous lumps or crystalline powder. Slightly soluble in water, but dissolves very slowly; more soluble in hot water. Noncombustible. Corr.... It has a molecular weight of 197.841 g/mol. Its IUPAC name is bis(arsenic(3+));tris(oxygen(2-)). Boiling point: 869 °F at 760 mmHg (EPA, 1998). Melting point: 379 to 594.1 °F ; Arsenolite and claudetite forms sublime at 379 °F. (EPA, 1998).
Formula & Notation
IUPAC Name: bis(arsenic(3+));tris(oxygen(2-))
Other Names / Synonyms: bis(arsenic(3+));tris(oxygen(2-)); Arsenic oxide (As2O3); Arsentrioxide; Arseni trioxydum; Arsenious trioxide; Claudetite; Trixenox; Oxyde Arsenieux; Arsenious Acid Anhydride; Acide arsenieux
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 379 to 594.1 °F ; Arsenolite and claudetite forms sublime at 379 °F. (EPA, 1998) |
| Boiling Point | 869 °F at 760 mmHg (EPA, 1998) |
| Density | 3.738 amorphous or vitreous; 3.865 arsenolite; 4.15 claudetite (EPA, 1998) |
| Molecular Weight | 197.841 |
| Solubility | 17000 mg/L (at 16 °C) |
| Appearance | Arsenic trioxide appears as white or transparent, glassy amorphous lumps or crystalline powder. Slightly soluble in water, but dissolves very slowly; more soluble in hot water. Noncombustible. Corr... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Arsenic trioxide (As2O3) is an inorganic compound that appears as Arsenic trioxide appears as white or transparent, glassy amorphous lumps or crystalline powder. Slightly soluble in water, but dissolves very slowly; more soluble in hot water. Noncombustible. Corr.... It has a molecular weight of 197.841 g/mol. Its IUPAC name is bis(arsenic(3+));tris(oxygen(2-)). Boiling point: 869 °F at 760 mmHg (EPA, 1998). Melting point: 379 to 594.1 °F ; Arsenolite and claudetite forms sublime at 379 °F. (EPA, 1998).
Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.
May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.
The formula or notation for Arsenic trioxide is: As2O3