colorless

“But if you come home and there is no smell, you can’t assume there’s nothing there, because a lot of the toxins we’re talking about are odorless and colorless.”

Hydrogen sulfide is a colorless, flammable, highly toxic gas with the odor of rotten eggs.

The city’s dirtiest cop was also the most colorless, with a forgettable face and a personality as vague as fog.

Methylene chloride, also called dichloromethane, is a colorless liquid that emits a toxic vapor that has killed at least 88 workers since 1980, the EPA said.

The researchers suggest that adding small amounts of ferrihydrite-like or other colorless biocompatible iron minerals to dental care products could provide exceptional protection for human tooth enamel.