What does toluol mean?
Toluol is a less common spelling of toluene, the aromatic hydrocarbon known chemically as methylbenzene. It is a colorless, flammable liquid used industrially as a solvent and as a feedstock for producing plastics, synthetic fibres, and other chemicals. Because it evaporates readily, its vapour can accumulate in poorly ventilated workplaces, and exposure may cause headache, dizziness, and nervous-system effects. Older scientific and industrial writing often used toluol; modern dictionaries and technical literature normally prefer toluene. The spelling also occurs in safety materials and historical documents, so recognizing it is useful when reading older sources. Although its everyday use has declined, the compound remains important in chemical manufacturing, while its toxicity makes careful handling and ventilation essential. It is also sometimes encountered in chemical inventories that preserve alternate chemical names.
nounToluol is the less common spelling of toluene, an aromatic hydrocarbon known chemically as methylbenzene. It is a colorless, flammable liquid used industrially as a solvent and as a feedstock for manufacturing plastics, synthetic fibres, and other chemicals.
- The aromatic hydrocarbon now usually spelled toluene, used as an industrial solvent and chemical feedstock.
"The factory replaced toluol with a less hazardous solvent."
"The factory replaced toluol with a less hazardous solvent."
"The safety notice warned that prolonged exposure to toluol vapour could harm the nervous system."
Rarely used; toluol is normally treated as an uncountable chemical noun.
"Commercial toluols are available in several purity grades."
Chemistry borrowed its name from the tree: toluene was first isolated from Tolu balsam, the fragrant resin once used in incense and medicine.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does toluol come from?
The base tolu comes through Spanish from Nahuatl tōlōtin, the name of a tree yielding a fragrant balsam. Both toluol and toluene belong to the chemical naming tradition built on that name, which also underlies terms such as toluidine and toluic acid. In English, toluol is an older or less common spelling of the compound now generally written toluene.
How toluol is actually used
A formal, chiefly historical or technical spelling now largely superseded by toluene. It may still appear in older scientific literature, industrial records, and safety documents.
Easily confused with toluol
Toluol and toluene are alternate spellings of the same chemical compound, with toluene being the standard modern spelling.