The chemist carefully neutralized the spill of sulphurous acid before it could damage the lab bench.

In late summer, cloudless sulphurs gathered on the roadside, their bright wings shimmering in the heat.

The old book described sulphuretted hydrogen as a pungent gas with a rotten-egg smell.

The sulphuriferous hot springs attracted geologists and health tourists alike.

The sulphuretum thriving near the seafloor vents supported a complex network of bacteria that cyclically transformed sulfur between sulfate and sulfide.

In nineteenth-century chemical literature, the prefix sulphureo- was used to denote substances that were partly sulphurous and partly characterized by another property.

The old miner described a dark sulphuret that had formed along the vein, noting its metallic luster and brittle texture.

The chemist sulphuret the ore to see if it would yield a sulfide.

The chemist decided to sulphurise the metal samples to test their corrosion resistance.

The geologist carefully catalogued the sulphuretums discovered along the fault line.