Sentence examples for mostly sulphur dioxide from inspiring English sources
The presence of gypsum and halite represent an important deterioration process of monuments and probably is the result of the chemical aggression of gaseous atmospheric pollutants, mostly sulphur dioxide on calcite: CaCO 3 + H 2 SO 4 + 2 H 2 O → CaSO 4. 2 H 2 O + CO 2 + H 2 O. Halite could also be derived from wind-blown sea sprays.
However, sulphuric compounds such as sulphuric acid and sulphur dioxide must be handled in the downstream processing, and a process without sulphur is therefore preferred, if it can give similar yields and process economics as a sulphur-containing process.
Sulphuric acid and sulphur dioxide are commonly used as acid catalysts.
Sulphur dioxide, which is produced naturally in wine-making, is generally considered harmless.
For the climate, the key gas is sulphur dioxide.
It also avoids the release of the pollutants sulphur dioxide and nitrogen dioxide.
The scientists compared the test results with records of nitrogen dioxide and sulphur dioxide pollution.
The standard lists limits on a string of pollutants including sulphur dioxide, nitrogen dioxide and airborne particles.
Australia has the highest per capita emissions of sulphur dioxide and nitrogen dioxide in the OECD, bar Iceland.
Invented in the eponymous Cotswold village, Campden tablets release sulphur dioxide into the mixture.
