The museum labeled the piece a sulphur print, noting it used sulfur-based toning common in 19th-century photography.

She sprinkled a pinch of sulphur of ivy into the winter fire, believing its old charm would keep the frost at bay.

During the experiment, a small amount of sulphur dibromide was formed and had to be handled under an inert atmosphere.

The old remedy relied on a small amount of sulphur salt to soothe irritated skin.

The old spa's sulphur shower soothed her aching muscles after the long journey.

The botanist identified the rare sulphur weed along the riverbank, noting its bright yellow blooms.

The old sulphur works by the harbor emitted a sharp smell that lingered for miles.

The technician carefully neutralized the spill of sulphur acid before starting the cleanup.

A sulphur tree by the old stone wall released a delicate, citrusy scent that drew bees and butterflies every summer.

The sulphur cycle plays a vital role in regulating atmospheric chemistry and soil fertility.