caustic lime: meaning, definition, pronunciation and examples
C1+Technical/Industrial
Quick answer
What does “caustic lime” mean?
A white crystalline alkaline substance, calcium oxide (CaO), obtained by heating limestone. It is corrosive and reacts violently with water.
Audio
Pronunciation
Definition
Meaning and Definition
A white crystalline alkaline substance, calcium oxide (CaO), obtained by heating limestone. It is corrosive and reacts violently with water.
Also known as quicklime, it is a key industrial chemical used in construction (e.g., mortar), water treatment, steel production, and as a soil treatment in agriculture.
Dialectal Variation
British vs American Usage
Differences
No major differences in meaning. 'Quicklime' is the more common technical term in both varieties. The compound 'caustic lime' is understood but less frequent.
Connotations
Neutral technical term in both. Connotes industrial or chemical processes, danger, and reactivity.
Frequency
Low frequency in general discourse. Higher frequency in engineering, chemistry, construction, and agricultural texts.
Grammar
How to Use “caustic lime” in a Sentence
[substance] + be + made from + caustic lime[process] + requires + caustic limetreat + [material] + with + caustic limeVocabulary
Collocations
Examples
Examples of “caustic lime” in a Sentence
verb
British English
- The process involves caustic liming the soil to adjust pH.
- They will lime the field with caustic lime next week.
American English
- The treatment involves liming the effluent with caustic lime.
- They limed the soil with caustic lime to reduce acidity.
adverb
British English
- The material reacted caustic-lime quickly with moisture.
American English
- The substance behaved caustic-lime violently when wet.
adjective
British English
- The caustic-lime slurry was prepared under a fume hood.
- A caustic-lime solution is highly alkaline.
American English
- The caustic-lime mixture requires careful handling.
- Caustic-lime dust can irritate the lungs.
Usage
Meaning in Context
Business
Used in procurement (e.g., 'The contract includes delivery of 50 tonnes of caustic lime for the water treatment plant.')
Academic
Common in chemistry, materials science, and civil engineering papers (e.g., 'The kinetics of caustic lime slaking were studied.')
Everyday
Virtually never used. A layperson might encounter it in safety warnings or historical contexts.
Technical
The primary register. Used in specifications, safety data sheets, and process descriptions (e.g., 'The kiln operates at 900°C to produce caustic lime.')
Vocabulary
Synonyms of “caustic lime”
Vocabulary
Antonyms of “caustic lime”
Watch out
Common Mistakes When Using “caustic lime”
- Using 'lime' alone in technical writing, causing ambiguity.
- Confusing 'caustic lime' (CaO) with 'caustic soda' (NaOH).
- Misspelling as 'caustic lim'.
FAQ
Frequently Asked Questions
Yes, they are synonyms. 'Quicklime' is the more common industrial term.
It undergoes a vigorous exothermic reaction called 'slaking,' producing calcium hydroxide (slaked lime) and significant heat.
Yes, but with extreme caution. It is used to rapidly raise soil pH (reduce acidity), but hydrated lime is safer and more common for this purpose.
Because it is highly alkaline and corrosive, capable of burning skin and organic tissues on contact, similar to strong acids.
A white crystalline alkaline substance, calcium oxide (CaO), obtained by heating limestone. It is corrosive and reacts violently with water.
Caustic lime is usually technical/industrial in register.
Caustic lime: in British English it is pronounced /ˌkɔːstɪk ˈlaɪm/, and in American English it is pronounced /ˌkɑːstɪk ˈlaɪm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None specific to this term.”
Learning
Memory Aids
Mnemonic
Think: 'CAUSTIC LIME burns like ACIDIC TIME' – it's corrosive ('caustic') and needs careful handling over time.
Conceptual Metaphor
INDUSTRIAL MATERIAL IS A REACTIVE AGENT (focus on its transformative, often destructive, chemical power).
Practice
Quiz
What is the primary chemical compound in caustic lime?