ash-content
Definition
Noun: - Chemical or industrial term: "ash-content" refers to the amount of inorganic residue remaining after a substance (such as coal, wood, food, or fuel) is completely burned. It is expressed as a percentage of the original weight and indicates the non-combustible mineral matter present.
Usage Examples
- (The proportion of non-burnable minerals is excessive.)
- (The analysis quantified the leftover mineral residue after combustion.)
Advanced Usage
- "Low ash-content": Indicates a high-quality fuel or material with minimal non-combustible residue.
- Premium diesel fuel is characterized by a low ash-content. (It leaves very little solid waste after burning.)
- "Ash-content analysis": A specific chemical procedure to determine the mineral residue in a sample.
- The ash-content analysis revealed traces of silica and iron oxide. (The test identified the types of inorganic compounds present.)
Variants and Related Words
- Ash (n): the powdery residue left after something is burned.
- Volcanic ash covered the town. (Fine particles from a volcano.)
- Content (n): the amount of a particular substance contained in something.
- The moisture content of the wood affects its burning efficiency. (The level of water present.)
Synonyms
- Mineral residue: the inorganic matter left after combustion.
- Non-combustible fraction: the portion of a material that does not burn.
Related Idioms
- "Reduce to ash": To burn something completely.
- The fire reduced the old building to ash. (It destroyed it entirely by fire.)
- "Ash and dust": A phrase symbolizing total destruction or worthlessness.
- His dreams turned to ash and dust after the failure. (His hopes were completely ruined.)