mixed acid: meaning, definition, pronunciation and examples

C1
UK/mɪkst ˈæsɪd/US/mɪkst ˈæsɪd/

Technical/Chemical

My Flashcards

Quick answer

What does “mixed acid” mean?

A mixture of nitric acid and sulfuric acid used primarily as a nitrating agent in industrial chemistry.

Audio

Pronunciation

Definition

Meaning and Definition

A mixture of nitric acid and sulfuric acid used primarily as a nitrating agent in industrial chemistry.

In broader usage, sometimes refers to any combination of different acids. In microbiology, can refer to a metabolic pathway in some bacteria (mixed acid fermentation).

Dialectal Variation

British vs American Usage

Differences

No significant lexical or orthographic differences. Both use the term identically in technical contexts.

Connotations

Purely technical/industrial connotations in both varieties.

Frequency

Equally low frequency in both, confined to chemistry/engineering texts and discussions.

Grammar

How to Use “mixed acid” in a Sentence

N + N compound (mixed acid)prepositional: mixed acid for nitrationverb + object: prepare/use mixed acid

Vocabulary

Collocations

strong
nitratingconcentratedindustrialsulfuric and nitric
medium
preparehandleusemixture of
weak
dangerouschemicalsolutionbatch of

Examples

Examples of “mixed acid” in a Sentence

adjective

British English

  • The mixed-acid process is central to TNT manufacture.
  • We need mixed-acid resistant piping.

American English

  • The mixed-acid procedure requires careful temperature control.
  • Mixed-acid storage tanks are specially lined.

Usage

Meaning in Context

Business

Rare, except in chemical manufacturing or procurement contexts: 'The contract specifies delivery of mixed acid for the nitration plant.'

Academic

Used in chemistry and chemical engineering papers: 'The reaction was carried out using mixed acid at 50°C.'

Everyday

Extremely rare. Might be misinterpreted literally: 'I spilled some mixed acid from the car battery.' (Incorrect usage)

Technical

Primary domain. Precise meaning of a specific blend of nitric and sulfuric acids.

Vocabulary

Synonyms of “mixed acid”

Neutral

nitrating mixture

Weak

acid mixturecombined acids

Vocabulary

Antonyms of “mixed acid”

single acidpure aciddilute acid

Watch out

Common Mistakes When Using “mixed acid”

  • Using 'mixed acid' to describe any combination of acids (e.g., vinegar and lemon juice).
  • Treating it as a common phrase instead of a technical term.
  • Misspelling as 'mix acid'.

FAQ

Frequently Asked Questions

In general language, they could be synonymous. However, in technical chemistry, 'mixed acid' specifically refers to the nitrating mixture of nitric and sulfuric acids, while 'acid mixture' is a broader, non-specific term.

It would be very unusual unless you are discussing chemistry or industrial processes. In everyday contexts, phrases like 'a mixture of acids' or describing the specific acids would be more natural.

Yes, the standard mixed acid (nitric + sulfuric) is highly corrosive and a strong oxidizer. It must be handled with extreme care by trained professionals using appropriate safety equipment.

This is a separate microbiological term. It refers to a metabolic pathway used by some bacteria (like E. coli) to ferment sugars, producing a mixture of several organic acids (e.g., lactic, acetic, formic acid). It's a different concept from the industrial chemical term.

A mixture of nitric acid and sulfuric acid used primarily as a nitrating agent in industrial chemistry.

Mixed acid is usually technical/chemical in register.

Mixed acid: in British English it is pronounced /mɪkst ˈæsɪd/, and in American English it is pronounced /mɪkst ˈæsɪd/. Tap the audio buttons above to hear it.

Learning

Memory Aids

Mnemonic

Think 'MIXed' for the mixture, 'ACID' for the dangerous chemicals. Imagine a chemist MIXing two bottles labelled HNO3 and H2SO4.

Conceptual Metaphor

TOOL FOR TRANSFORMATION (industrial process), POTENTIAL HAZARD.

Practice

Quiz

Fill in the gap
For the industrial nitration of benzene, a common reagent is .
Multiple Choice

What is the primary industrial use of 'mixed acid' as a technical term?