pyrosulfate: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “pyrosulfate” mean?
A salt or ester of pyrosulfuric acid (H₂S₂O₇).
Audio
Pronunciation
Definition
Meaning and Definition
A salt or ester of pyrosulfuric acid (H₂S₂O₇).
An inorganic compound containing the disulfate anion S₂O₇²⁻, often formed by heating hydrogen sulfates. In technical contexts, it refers to a specific class of reagents or intermediates in industrial chemistry, particularly in the production of fertilizers or as laboratory oxidising agents.
Dialectal Variation
British vs American Usage
Differences
The British spelling typically uses 'sulphate' (pyrosulphate), while the American spelling uses 'sulfate' (pyrosulfate). The American form is increasingly standard in global scientific literature.
Connotations
Identical scientific meaning; the difference is purely orthographic.
Frequency
In British academic journals, 'pyrosulphate' may appear in older texts, but 'pyrosulfate' is now common. In American texts, only 'pyrosulfate' is used.
Grammar
How to Use “pyrosulfate” in a Sentence
[compound] + pyrosulfatepyrosulfate + of + [metal]pyrosulfate + ionfusion + with + pyrosulfateVocabulary
Collocations
Examples
Examples of “pyrosulfate” in a Sentence
adjective
British English
- The pyrosulphate fusion method is described in the annex.
- We identified a pyrosulphate-containing phase.
American English
- The pyrosulfate fusion method is standard for ore analysis.
- A pyrosulfate-containing complex was isolated.
Usage
Meaning in Context
Academic
Used in chemistry research papers and textbooks discussing inorganic synthesis, analytical chemistry (e.g., pyrosulfate fusion for dissolving refractory minerals), or electrochemistry.
Everyday
Virtually never used.
Technical
Used in laboratory manuals, chemical supply catalogues, industrial process sheets for mineral analysis or catalyst preparation.
Vocabulary
Synonyms of “pyrosulfate”
Strong
Neutral
Weak
Vocabulary
Antonyms of “pyrosulfate”
Watch out
Common Mistakes When Using “pyrosulfate”
- Confusing 'pyrosulfate' (S₂O₇²⁻) with 'persulfate' (S₂O₈²⁻), a stronger oxidiser. Misspelling as 'pyrosulphate' in internationally targeted work. Using it as a verb (e.g., 'to pyrosulfate' is incorrect).
FAQ
Frequently Asked Questions
No. Pyrosulfate (S₂O₇²⁻) is a disulfate formed by condensing two sulfate groups with heat. Persulfate (S₂O₈²⁻) is a peroxodisulfate containing an peroxide linkage (-O-O-) and is a much stronger oxidising agent.
No, it is strictly a noun referring to a specific chemical compound. The process might be described as 'performing a pyrosulfate fusion' or 'forming a pyrosulfate'.
Potassium pyrosulfate (K₂S₂O₇) is commonly used as a flux in 'pyrosulfate fusion' to dissolve refractory oxides and silicates for chemical analysis.
It follows the general pattern for sulfur/sulphur compounds. Historically, British English used 'sulph-', but the IUPAC recommendation and modern scientific practice favour 'sulf-', making 'pyrosulfate' the prevalent international spelling.
A salt or ester of pyrosulfuric acid (H₂S₂O₇).
Pyrosulfate is usually technical/scientific in register.
Pyrosulfate: in British English it is pronounced /ˌpaɪrəʊˈsʌlfeɪt/, and in American English it is pronounced /ˌpaɪroʊˈsʌlfeɪt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'PYRO' (fire/heat) + 'SULFATE'. A sulfate formed by HEATing other sulfates, driving off water.
Conceptual Metaphor
COMPOUND AS A FUSED ENTITY (Two sulfate units fused together by heat, like welding).
Practice
Quiz
What is the primary structural feature indicated by the 'pyro-' prefix in 'pyrosulfate'?