| Formula / Notation | O2S |
|---|---|
| CAS Number | 7446-09-5 |
| Molecular Weight | 64.07 |
| Melting Point | -98.9 °F (EPA, 1998) |
| Boiling Point | 14 °F at 760 mmHg (EPA, 1998) |
| Density | 1.434 (EPA, 1998) - Denser than water; will sink |
| Solubility | 10 % (NIOSH, 2024) |
| Appearance | Sulfur dioxide appears as a colorless gas with a choking or suffocating odor. Boiling point -10 °C. Heavier than air. Very toxic by inhalation and may irritate the eyes and mucous membranes. Under... |
| Also Known As | sulphur dioxide; 7446-09-5; Sulfurous anhydride; Sulfurous oxide; Fermenicide liquid; Sulfurous acid anhydride; Sulfur superoxide; Fermenicide powder; Sulfur oxide (SO2); Schwefeldioxid |
| Category | Inorganic Compounds |
What is Sulfur dioxide?
Sulfur Dioxide can cause developmental toxicity according to an independent committee of scientific and health experts.
Formula & Notation
IUPAC Name: sulfur dioxide
Other Names / Synonyms: sulphur dioxide; 7446-09-5; Sulfurous anhydride; Sulfurous oxide; Fermenicide liquid; Sulfurous acid anhydride; Sulfur superoxide; Fermenicide powder; Sulfur oxide (SO2); Schwefeldioxid
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | -98.9 °F (EPA, 1998) |
| Boiling Point | 14 °F at 760 mmHg (EPA, 1998) |
| Density | 1.434 (EPA, 1998) - Denser than water; will sink |
| Molecular Weight | 64.07 |
| Solubility | 10 % (NIOSH, 2024) |
| Appearance | Sulfur dioxide appears as a colorless gas with a choking or suffocating odor. Boiling point -10 °C. Heavier than air. Very toxic by inhalation and may irritate the eyes and mucous membranes. Under... |
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
Sulfur Dioxide can cause developmental toxicity according to an independent committee of scientific and health experts.
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 Sulfur dioxide is: O2S