Customization: | Available |
---|---|
CAS No.: | 7446-09-5 |
Formula: | So2 |
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
Sulfur dioxide gas (SO2) is a toxic gas with a pungent, irritating smell that is released by volcanoes and in various industrial processes.
Model | Sulfur dioxide |
Molecular Formula | SO2 |
Filling rate | 1.25 |
UN No. | UN1079 |
CAS No. | 7446-09-5 |
EINECS No. | 231-195-2 |
Hazardous class for transport | 2.3 |
Transportation Label | Nonflammable Gas |
Item | Standard(GB/T3637-2021) |
SO2 (%) | ≥99.9%min |
Residue | ≤0.04 |
H2O | ≤0.06 |
As | ≤0.000004 |
1.Precursor to sulfuric acid
Sulfur dioxide is an intermediate in the production of sulfuric acid, being converted to sulfur trioxide, and then to oleum, which is made into sulfuric acid. Sulfur dioxide for this purpose is made when sulfur combines with oxygen. The method of converting sulfur dioxide to sulfuric acid is called the contact process.Q: What's DIJIA main sales products?