sulphur dioxide

British  

noun

1. Systematic name: sulphur(IV) oxide.  a colourless soluble pungent gas produced by burning sulphur. It is both an oxidizing and a reducing agent and is used in the manufacture of sulphuric acid, the preservation of a wide range of foodstuffs ( E220 ), bleaching, and disinfecting. Formula: SO 2

---

Example Sentences

Prior to 2020, dirty engine oil produced large amounts of sulphur dioxide, a gas harmful to human health.

From BBC

The processing of phosphate rock into fertiliser emits toxic gases such as sulphur dioxide and ammonia.

From Barron's

In addition to the danger of the release of toxic sulphur dioxide gas, just being exposed to dust particles from the concentrate can damage a person’s respiratory system.

From BBC

Pinatubo, the resulting half a degree of global cooling was the result of about 15 million tonnes of sulphur dioxide injected into the stratosphere.

From BBC

Authorities later said the area around Grindavik was evacuated after sulphur dioxide was detected, sparking fears of a nearby opening in the ground.

From BBC