sulphide
noun (a sulphide, sulphides); (US spelling: sulfide)
Everyday
- (science) A sulphide is a chemical compound made of sulphur joined with another element, often a metal. tree →
- Hydrogen sulphide is a gas that smells of rotten eggs. tree →
In the lessons
In science lessons sulphides are important ores: iron sulphide (fool's gold, pyrite), lead sulphide (galena) and zinc sulphide; metals are extracted from them. In safety lessons hydrogen sulphide from drains and volcanoes is smelly and poisonous in large amounts. Phrases: iron sulphide, hydrogen sulphide, copper sulphide.
Examples
- Pyrite, or fool's gold, is iron sulphide. tree →
- The rotten-egg smell came from hydrogen sulphide. tree →
- When we heated iron and sulphur, they made iron sulphide. tree →
- Galena is a shiny grey lead sulphide ore. tree →
- Volcanoes give off hydrogen sulphide gas. tree →
- Silver turns black when it reacts with sulphides in the air. tree →
- Miners dug up copper sulphide to get copper. tree →
Note
UK spelling sulphide, US and international science spelling sulfide; both are correct. Do not confuse with sulphate (sulphur and oxygen with another element). Names ending in «-ide» usually mean only two elements.
On Mova
- Trees and pragmatics of «sulphide» in the school dictionary: every meaning and example parsed by Mova, with its dependency tree and frames.
- «sulphide» in the school dictionary on Mova free.
This page in Markdown → https://md.dictionary.elamur.ai/free/en/english/sulphide/