Sulfur Dioxide
Sulfur Dioxide
Formula: SO2
Sulfur Dioxide (SO2) is a colorless, toxic gas with a sharp, pungent odor, often recognized as the smell of burnt matches. It occurs naturally through volcanic activity and is industrially produced by the combustion of elemental sulfur or the roasting of sulfide ores such as pyrite.
In industrial environments, sulfur dioxide is primarily used as a chemical intermediate, especially in the production of sulfuric acid, one of the most widely used industrial chemicals. Its strong reducing and acidic properties also make it useful in a range of chemical processing and environmental control applications, including pH adjustment, bleaching, and flue gas scrubbing.
SO2 is also notable for its role in equipment sanitation and surface cleaning in certain industrial settings. Due to its effectiveness as a microbial control agent and its incompatibility with chlorine-based cleaners in sensitive environments, sulfur dioxide solutions are used in industries where clean, non-chlorinated sanitation is required.
In addition, sulfur dioxide’s physical properties—being easily liquefied and having a high heat of evaporation—make it a candidate for specialty refrigeration and cooling applications, particularly in controlled industrial environments. While no longer used in domestic systems, it remains of interest for certain niche thermal management systems.
EFC Gases & Advanced Materials offers sulfur dioxide for critical industrial and specialty applications, supported by rigorous quality control and dependable supply.
Applications
Specifications
Cylinder Sizes
- Chemical Intermediate
- Bleaching Agent
- Reducing Agent
- Flue Gas Treatment
- Water Treatment
- Sanitization and Cleaning Agent
- Refrigeration
- Laboratory and Analytical Applications
| Grade | |
|---|---|
| Purity | |
| N2 | |
| CO2 | |
| Water |
| Cylinder Size | Fill Volume (lb) |
|---|---|
| 55L/Size 150LP | 150 |
| 44L/Size 200 | 100 |
| 16L/Size 80 | 40 |
