dithionite: meaning, definition, pronunciation and examples
Very LowScientific/Technical
Quick answer
What does “dithionite” mean?
A chemical compound containing the S2O4²⁻ anion, formally derived from dithionous acid (H2S2O4), used primarily as a reducing agent.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical compound containing the S2O4²⁻ anion, formally derived from dithionous acid (H2S2O4), used primarily as a reducing agent.
Specifically refers to salts, most commonly sodium dithionite (Na2S2O4), employed in industrial and laboratory contexts for bleaching, stripping dyes, reducing metal ions, and as an oxygen scavenger.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Spelling conventions follow national norms for related chemical terminology (e.g., 'sulphur' may appear in older British texts, but 'sulfur' is now standard in both).
Connotations
None beyond its strict technical definition.
Frequency
Equally rare in both dialects, confined to highly specialized contexts.
Grammar
How to Use “dithionite” in a Sentence
[Substance] was reduced with/treated with dithionite.Dithionite acts as a [reducing agent/oxygen scavenger].Vocabulary
Collocations
Examples
Examples of “dithionite” in a Sentence
verb
British English
- The sample was dithionited to remove the oxide layer.
- We need to dithionite the solution before the next step.
American English
- The fabric is dithionited in the final bleaching stage.
- They dithionited the mixture to achieve a colorless state.
adjective
British English
- The dithionite concentration is critical.
- A dithionite wash was applied.
American English
- The dithionite reagent must be fresh.
- Use a dithionite-based stripping process.
Usage
Meaning in Context
Business
Mentioned in supply contracts or safety data sheets for chemical suppliers and industries like textiles or paper.
Academic
Used in research papers and textbooks on inorganic chemistry, environmental remediation, and conservation science.
Everyday
Virtually never used.
Technical
Core term in laboratory protocols, industrial process descriptions, and material safety documentation.
Vocabulary
Synonyms of “dithionite”
Vocabulary
Antonyms of “dithionite”
Watch out
Common Mistakes When Using “dithionite”
- Misspelling as 'dithionate' (a +6 oxidation state compound).
- Mispronouncing the first syllable as 'dih-' instead of 'die-'.
- Using it as a general term outside of chemistry.
FAQ
Frequently Asked Questions
Yes. Sodium dithionite decomposes to produce toxic sulfur dioxide (SO2) and can be a fire hazard when dry. It must be handled with appropriate safety measures.
In commerce, 'sodium hydrosulfite' typically refers to sodium dithionite (Na2S2O4). 'Hydrosulfite' is a common synonym, though strictly, dithionite describes the S2O4²⁻ anion.
No. It is a specialized, hazardous chemical with no safe or common household applications.
It readily reacts with atmospheric oxygen, acting as an oxygen scavenger. This property is useful in industrial processes but necessitates airtight storage.
A chemical compound containing the S2O4²⁻ anion, formally derived from dithionous acid (H2S2O4), used primarily as a reducing agent.
Dithionite is usually scientific/technical in register.
Dithionite: in British English it is pronounced /daɪˈθaɪənaɪt/, and in American English it is pronounced /daɪˈθaɪəˌnaɪt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think: 'DIE-thigh-oh-night'. A chemical that works at night (scavenges oxygen) to 'bleach' things white.
Conceptual Metaphor
A CHEMICAL ERASER or OXYGEN VACUUM.
Practice
Quiz
What is the primary industrial use of sodium dithionite?