What does sulfurate mean?
Sulfurate is a chiefly technical verb meaning to introduce sulfur into a substance or cause it to combine with sulfur; in another chemical use, it means to convert a compound into a sulfate. Its verb senses occur in industrial chemistry, metallurgy, and other specialist writing, where the older alternative sulfurize is also common. The noun is rare: it denotes a salt of sulfuric acid and is essentially an older or less usual counterpart of sulfate. Modern English users are therefore much more likely to encounter sulfurate in formal or technical descriptions than in ordinary conversation. The word belongs to the same chemical vocabulary as sulfuric, sulfate, sulfide, and sulfite, but these terms describe related rather than interchangeable substances. A sulfate contains the sulfate group, SO₄²⁻, whereas a sulfite contains the sulfite group, SO₃²⁻. Knowing sulfurate helps distinguish the process of introducing sulfur from the names of sulfur-containing compounds, making it particularly useful in chemistry, materials science, and industrial processing.
To treat or combine a substance with sulfur, especially in an industrial or chemical process.
"The refinery uses sulfur to sulfurate the feedstock."
Chiefly used in technical and formal contexts.
A salt of sulfuric acid; a rare equivalent of sulfate.
"The analyst identified the white powder as a sulf urate."
Rare and largely historical in modern usage.
The plural applies to the rare noun and is seldom needed in modern writing.
"The samples contained two different sulfurates."
Sulfurate is the action behind several sulfur-based transformations—and the name of an old salt whose modern label is sulfate.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does sulfurate come from?
Sulfurate was formed in English from sulfur and the suffix -ate, placing it in the same broad chemical family as sulfate and sulfide. Sulfur entered English through Old French from Latin sūlpur, whose further origin is uncertain. The variant spelling sulph- reflects an older British convention, while the same Latin-derived stem underlies forms such as sulfuric and sulfate.
Related word forms
How sulfurate is actually used
Chiefly formal and technical; sulfurize is more familiar in industrial usage. The noun is rare and largely historical in modern English.
Easily confused with sulfurate
A sulfate is a compound containing the sulfate ion, SO₄²⁻, whereas sulfurate most often names the act of introducing sulfur or forming a sulfate.
A sulfite contains the sulfite ion, SO₃²⁻, while sulfurate refers to sulfur treatment or, rarely, to a sulfate salt.