General Description
Sulfur dioxide gas (SO2 gas) is 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 prolonged exposure to fire or heat the containers may rupture violently and rocket.Liquid sulfur dioxide (SO2) is a versatile chemical with many uses, both in liquid form or as a source of gaseous SO2. Liquid SO2 is used the pulp and paper industry, mining industry, and in the food industry as a preservative. It can function as a reducing agent, an oxidizing agent, a pH controller, purifying agent, preservative, a germicide and bleaching agent. SO2 can also be used as a refrigerant, heat transfer fluid and selective solvent.
| SO2 |
NOx |
| 20mg/m³ |
30mg/m³ |
60mg/m³ |
120mg/m³ |
320mg/m³ |
30mg/m³ |
40mg/m³ |
130mg/m³ |
320mg/m³ |
550mg/m³ |
| 2 |
2 |
56 |
54 |
54 |
0 |
54 |
56 |
56 |
2 |
| 5 |
5 |
5 |
0 |
0 |
5 |
5 |
5 |
0 |
0 |
| 1 |
1 |
1 |
0 |
0 |
0 |
1 |
1 |
1 |
0 |
| 3 |
3 |
3 |
0 |
0 |
0 |
3 |
3 |
3 |
0 |
| 11 |
11 |
65 |
54 |
54 |
5 |
63 |
65 |
60 |
2 |
| 21 |
20 |
100 |
100 |
100 |
20 |
100 |
100 |
100 |
20 |
NO standard gas should be purchased, and the concentration is NO x concentration of the upper table divided by 1.53
The application and specific details of gases
Company introduction:
NINGBO DSW INDUSTRY CO.,LTD established in 1998. we produce the following gas: 99.999% and 99.995% helium were 99.9% and 99.999%,
99.9% and 99.999% of the laughing gas, the carbon monoxide were 99.9993% and 99.999%, 99.9993% and 99.999% of argon gas, and 99.995%
hydrogen, 99.995% and 99.999% nitrogen, 99.999% and 99.99% were 99.999% and 99.995% and 99.999% of carbon dioxide, methane, 99.999%
and 99.998%, and 99.999% of the oxygen, or more than 99.9% of acetylene, and so on.
So far our products are enjoying good markets at home and exporting to Asia, Middle East ,South America and European and as well as West Africa.
Audited Supplier 
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