sulfur dioxide

Acid rain precursor

Sulfur dioxide is a pungent, colorless gas with the chemical formula SO₂.

It forms when sulfur burns and is a major component of volcanic emissions and industrial pollution.

Sulfur dioxide causes acid rain and respiratory problems, making it a regulated pollutant.

It's also used as a preservative in wine and dried fruits, where it prevents oxidation and microbial growth.

chemical

SO2

Sulfurous atmospheric pollutant

inorganic · gas · reactant · sulfite · oxidation · combustion · reduction · solubility · aqueous · hydration

pollution

emissions

Substances released into air

  • smogSunlight-activated urban pollution
  • air qualityPollution level measurement
  • acid rainPolluted atmospheric moisture falling

fossil fuels · coal burning · power plants · industrial · scrubbers · exhaust · atmospheric · contaminants · environmental hazard · Clean Air Act

volcanic

eruption

Violent sudden release

vents · plume · degassing · crater · magma · lava · volcanology · Hawaii · Kilauea · vog

preservative

wine

Fermented grape beverage

food additive · winemaking · antimicrobial · shelf life · fermentation · apricots · raisins · food-grade · molasses · fruit preservation

odor

pungent

Sharply strong-smelling

irritating · sharp · noxious · rotten · stinging · unpleasant · detectable · eye irritation · throat irritation · strong

Categories
Opposites
chemical composition

sulfur dioxidehydrogen sulfide

Toxic gas, foul-smelling

pure air · oxygen · nitrogen · carbon monoxide · noble gases

environmental/health impact

sulfur dioxideoxygen

Element eight, colorless gas

fresh air · clean air · pure oxygen · breathable air · ozone

chemical behavior

sulfur dioxideammonia

Acrid nitrogen-hydrogen gas

sodium hydroxide · inert gas · noble gases · nitrogen

Family

sulfur, dioxide, sulfurous, sulfide, sulfuric, sulphur, sulfates, sulfured, sulphurous

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Concrete · Rated G