Sulfur dioxide (SO₂) is a toxic gas with a sharp, irritating smell. It is a byproduct of various industrial processes and is also produced naturally through volcanic activity. Here are some key characteristics of sulfur dioxide:
Chemical Properties:
Molecular Formula: SO₂
Molecular Weight: Approximately 64.06 g/mol
CAS Number: 7446-09-5
Physical Properties:
At room temperature and pressure, it appears as a colorless gas.
It is heavier than air, with a density of about 2.9 kg/m³ at standard conditions.
Sulfur dioxide has a boiling point of -10.0°C (14°F) and a melting point of -72.7°C (-98.9°F).
Toxicity:
Sulfur dioxide is a respiratory irritant and can cause serious health problems when inhaled.
High concentrations can lead to severe lung damage, bronchitis, or even death.
It can also irritate the eyes and mucous membranes.
Environmental Impact:
It contributes to acid rain formation when it reacts with water vapor in the atmosphere.
Sulfur dioxide can also lead to the formation of particulate matter which can have negative effects on human health and visibility.
Uses:
In the food industry, sulfur dioxide is used as a preservative to prevent oxidation and microbial growth.
It is used in the production of sulfuric acid.
It plays a role in the pulp and paper industry for bleaching wood pulp.
Sulfur dioxide is also utilized in the wine-making process to prevent spoilage.
Regarding suppliers, Major chemical distributors often carry sulfur dioxide, and it might be available in various forms such as compressed gas cylinders or liquid containers.For safety and handling information, always refer to the Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) provided by the supplier. Proper storage and handling procedures are crucial due to its hazardous nature. If you need more detailed information or a specific supplier's contact details, I would need to know your location and the scale of your requirements. Please let me know if you need further assistance.