upon contact with

USAGE SUMMARY

"upon contact with" is correct and usable in written English.
You can use the phrase when you want to describe an action that occurs upon making contact with something else. For example: "The stone cracked upon contact with water."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

It is treated with secret chemicals that change colour upon contact with vapour from plastic explosives.

The Economist

The fabric, according to product tags, "releases marine amino acids, minerals and vitamins into the skin upon contact with moisture".

The New York Times

That's more or less the subject of "Whatever Works": the sexual liberation of "provincials" upon contact with New York.

The New Yorker

The events described in the witnesses' testimony seem to come to life upon contact with the sites where they occurred.

The New Yorker

Maybe the greenish-white polish contained a chemical that, upon contact with glass, produced an optical distortion.

The New Yorker

Each glorious golden hunk of ideological cheddar or Gruyère is left in shreds upon contact with the world.

The Economist

Popular lore tells of emperors who believed ivory chopsticks would change color upon contact with poisoned food.

The New York Times

The beetle fires this fluid at boiling-hot temperatures, and the hot fluid vaporizes upon contact with air.

Encyclopedia Britannica

Hafnium produces a protective film of oxide or nitride upon contact with air and thus has high corrosion resistance.

Encyclopedia Britannica

Data can be shared upon contact with the senior author.

Health Economics Review

In addition, objects causally interact upon contact with each other.

SEP

Expert writing Tips

Best practice

Use "upon contact with" to clearly indicate a reaction or change that occurs immediately when two elements come together. For example: "The solution changed color "upon contact with" the acid."

Common error

Avoid using "upon contact with" when you mean "after contact with" if there's a delay between the contact and the reaction. "Upon" implies immediacy. Use "after" if the reaction takes time.

Linguistic Context

The phrase "upon contact with" functions as a prepositional phrase, indicating the condition or trigger for a subsequent action or state. Ludwig AI shows that this phrase introduces circumstances that lead to specific outcomes, as seen in examples like, "The activation of T3SS is stimulated "upon contact with" eukaryotic cells."

Expression frequency: Very common

Frequent in

Science

61%

News & Media

22%

Wiki

8%

Less common in

Encyclopedias

3%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "upon contact with" is a grammatically correct and frequently used prepositional phrase that specifies the immediate condition leading to a subsequent action. As Ludwig AI confirms, it serves to highlight cause-and-effect relationships, particularly in scientific and formal contexts. While the phrase is most often found in scientific literature, it appears also in news and media. Therefore, when using this phrase, ensure that it reflects an immediate reaction to the contact, differentiating it from similar phrases like "after contact with". Overall, "upon contact with" provides clarity and precision when describing events triggered by physical interaction.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

on interaction with

Uses a more formal term, "interaction", to describe the contact between two entities.

on touching

A more concise alternative, using the preposition "on" and the gerund form of "touch".

when in touch with

Replaces "upon" with "when" and uses "in touch" instead of "contact", implying a state of being connected.

as a consequence of contact with

A more formal way to indicate that something happens because of the contact.

following interaction with

Highlights the sequence of events, emphasizing that the interaction precedes the result.

as a result of touching

Expresses a direct causal relationship, where touching leads to a specific outcome.

when meeting

Focuses on the moment of encountering or joining, using "meeting" as a synonym for contact.

on exposure to

Similar to "when exposed to", but uses "on" for a more concise expression.

when exposed to

Emphasizes the idea of being subjected to something, rather than direct physical contact.

in the presence of

Indicates that the effect happens when something is near or alongside something else, not necessarily touching.

FAQs

How can I use "upon contact with" in a sentence?

Use "upon contact with" to describe an immediate reaction or change that occurs when two things touch. For instance, "The paper ignited "upon contact with" the flame."

What are some alternatives to "upon contact with"?

You can use alternatives like "when in touch with", "on touching", or "on interaction with" depending on the context.

Is it correct to say "in contact with" instead of "upon contact with"?

"In contact with" describes a state of being connected, while "upon contact with" describes an action or reaction that happens at the moment of connection. They are not interchangeable.

What's the difference between "upon contact with" and "after contact with"?

"Upon contact with" implies an immediate reaction, whereas "after contact with" suggests a reaction that occurs sometime following the contact. The timing is the key distinction.