# Question about Coke and Phosphoric Acid.

**URL:** <https://boards.straightdope.com/t/question-about-coke-and-phosphoric-acid/174313>\
**Category:** Factual Questions\
**Created:** [May 10, 2003, 1:24pm UTC](https://boards.straightdope.com/t/question-about-coke-and-phosphoric-acid/174313 "2003-05-10T13:24:28Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![Desmostylus](https://avatars.discourse-cdn.com/v4/letter/d/c57346/32.png) [@Desmostylus](https://boards.straightdope.com/u/Desmostylus)\
**Post date:** [May 13, 2003, 12:19am UTC](https://boards.straightdope.com/t/question-about-coke-and-phosphoric-acid/174313/21 "2003-05-13T00:19:19Z")

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> [@](#):
>
> \*Originally posted by j.c. \*  
> **Are you suggesting there are acids in the carbonation?**

She might not, but I will.

“Carbonation” just means dissolving carbon dioxide in the water. A small amount of that carbon dioxide will form carbonic acid.

H[sub]2[/sub]O + CO[sub]2[/sub] → H[sub]2[/sub]CO[sub]3[/sub]

The effect of the carbonic acid is small compared to the citric and phosphoric acids.

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