molybdenum trioxide: meaning, definition, pronunciation and examples
Very RareTechnical/Scientific
Quick answer
What does “molybdenum trioxide” mean?
A chemical compound with the formula MoO₃, consisting of molybdenum and oxygen atoms in a 1:3 ratio.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical compound with the formula MoO₃, consisting of molybdenum and oxygen atoms in a 1:3 ratio.
A yellow crystalline solid used as a catalyst, pigment, and precursor in the production of molybdenum metal and other molybdenum compounds. It is also known as molybdenum(VI) oxide or molybdic anhydride.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage; the term is identical in both variants. Potential minor spelling preference: British English may be slightly more inclined to use 'trioxide' unhyphenated, but this is not a strict rule.
Connotations
Neutral technical term in both variants. No cultural or connotative differences.
Frequency
Extremely low frequency in general language, but identical frequency within specialized technical discourse in both the UK and US.
Grammar
How to Use “molybdenum trioxide” in a Sentence
[verb] + molybdenum trioxide (e.g., 'synthesize', 'reduce', 'analyze')molybdenum trioxide + [verb] (e.g., 'acts as', 'decomposes to', 'is used as')molybdenum trioxide + [preposition] + [noun] (e.g., 'in catalysts', 'for pigments', 'as a precursor')Vocabulary
Collocations
Examples
Examples of “molybdenum trioxide” in a Sentence
verb
British English
- The compound will molybdenise under those conditions, forming molybdenum trioxide.
- They attempted to molybdenum-trioxidise the precursor.
American English
- The process molybdates the metal, ultimately producing molybdenum trioxide.
- We need to trioxidize the molybdenum feedstock.
adverb
British English
- The reaction proceeded molybdenum-trioxide-catalytically.
- The layer was deposited molybdenum-trioxide-rich.
American English
- The surface reacted molybdenum-trioxide-like.
- The mixture was heated molybdenum-trioxide-specifically.
adjective
British English
- The molybdenum-trioxide catalyst showed high activity.
- A molybdenum-trioxide-based pigment was developed.
American English
- The molybdenum trioxide catalyst performed efficiently.
- They studied molybdenum trioxide nanoparticles.
Usage
Meaning in Context
Business
Rare, except in procurement or specification documents within chemical, metallurgical, or catalyst manufacturing industries.
Academic
Common in research papers, theses, and textbooks covering inorganic chemistry, catalysis, materials science, and solid-state chemistry.
Everyday
Virtually never used.
Technical
Standard term in laboratory reports, chemical safety data sheets (SDS), patents, and technical manuals related to chemical processes.
Vocabulary
Synonyms of “molybdenum trioxide”
Strong
Neutral
Weak
Vocabulary
Antonyms of “molybdenum trioxide”
Watch out
Common Mistakes When Using “molybdenum trioxide”
- Misspelling as 'molybden*um* trioxide' (adding an extra 'n').
- Incorrectly capitalizing it as a proper noun (e.g., 'Molybdenum Trioxide').
- Confusing its formula (MoO₃) with similar oxides like tungsten trioxide (WO₃).
FAQ
Frequently Asked Questions
Yes, it can be harmful. It is an irritant to eyes, skin, and respiratory system. Safety Data Sheets (SDS) should always be consulted, and appropriate personal protective equipment (PPE) used when handling it.
It is typically a white or pale yellow crystalline solid in its pure form.
It is very rare as a mineral (molybdite), but it is primarily produced industrially from molybdenite ore (MoS₂).
'Moly oxide' is an informal industrial shorthand and can be ambiguous, as it may refer to other molybdenum oxides. 'Molybdenum trioxide' or 'MoO₃' are the precise, preferred terms in technical communication.
A chemical compound with the formula MoO₃, consisting of molybdenum and oxygen atoms in a 1:3 ratio.
Molybdenum trioxide is usually technical/scientific in register.
Molybdenum trioxide: in British English it is pronounced /məˌlɪbdɪnəm traɪˈɒksaɪd/, and in American English it is pronounced /məˈlɪbdənəm traɪˈɑːksaɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “No established idioms contain this term.”
Learning
Memory Aids
Mnemonic
Think: 'Moly' (like the lubricant) + 'bdenum' sounds like 'bed' + 'num' (number). Trioxide = three (tri) oxygen atoms. So, 'Moly-bed-number with three oxygens'.
Conceptual Metaphor
N/A (Highly technical term not typically subject to metaphorical extension.)
Practice
Quiz
What is the primary industrial use of molybdenum trioxide?