Sodium bicarb AND citric acid powder?

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Discussion Overview

The discussion revolves around the use of sodium bicarbonate and citric acid in certain medicines, particularly in relation to their effectiveness for treating heartburn. Participants explore the chemical interactions between these compounds, their applications in homemade products like bath fizzies, and the implications for their use as antacids.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants question why sodium bicarbonate and citric acid are combined in medicines, suggesting that the reaction may neutralize the bicarbonate's effectiveness for heartburn relief.
  • Others propose that the combination might serve to enhance agitation and mixing, with a hypothesis that there is likely an excess of bicarbonate compared to citric acid.
  • A participant mentions their personal experience with using Pepcid AC and discusses its components, although there is some confusion regarding the chemical descriptions provided.
  • One participant speculates that citric acid might be included in antacids for liability reasons, such as preventing excessive sodium intake.
  • Another participant explains that the reaction produces sodium citrate, which could act as a buffer to help control pH in the stomach.

Areas of Agreement / Disagreement

Participants express differing views on the role and effectiveness of citric acid in antacids, with no consensus reached on its necessity or function. The discussion remains unresolved regarding the implications of the chemical interactions involved.

Contextual Notes

Participants reference various chemical properties and reactions, but some assumptions and specific quantities remain unclear. There is also a lack of consensus on the implications of using these compounds together in medicinal contexts.

LT72884
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Ok, quick question. I know that baking soda is great for heartburn, but why is it in certain medicines, they have sodium bicarb AND citric acid powder? My wife actually uses those two compounds to make bath fizzies. She adds esentual oils to them for health benefits and smells. haha. Anyway, once the sodium bicarb and citric acid mix in the water, they bubble and perform a basic base/acid reaction. But doesn't that mean, after the reaction, that the baking soda is now neutral and therefore will not stop the heart burn as well as just pure baking soda in water?

thanks
 
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LT72884 said:
Ok, quick question. I know that baking soda is great for heartburn, but why is it in certain medicines, they have sodium bicarb AND citric acid powder? My wife actually uses those two compounds to make bath fizzies. She adds esentual oils to them for health benefits and smells. haha. Anyway, once the sodium bicarb and citric acid mix in the water, they bubble and perform a basic base/acid reaction. But doesn't that mean, after the reaction, that the baking soda is now neutral and therefore will not stop the heart burn as well as just pure baking soda in water?

thanks

Interesting question. My guess, probably for agitation, mixing. My guess further is that there would be enough bicarbonate to be excess of the citric acid. Actual quantities, I really do not know.
 


symbolipoint said:
Interesting question. My guess, probably for agitation, mixing. My guess further is that there would be enough bicarbonate to be excess of the citric acid. Actual quantities, I really do not know.

thanks guys for some light and knowledge. i love this stuff, hence why i am an premed/engineering student. I have only had gen chem classes and so trying to see how things really work makes me excited. I am willing to bet that there is more sodium bicarb than the citric acid so therofre it still acts as a acid reducer.

I usually use pepcid ac since it is magnisuim, calcium and a mixture of NH2, sulfur and a we bit of ox. And pepsin, which is part of pepcid ac comes from the pepermint plant. that's what makes it soothing. Thats what i usually use for acid(once or twice a month) but i was out and being a student, 14$ for some is a we bit high for me. haha so i bought some antiacid powder from the store. that's when i noticed what it was.. haha.

thanks guys. i want to learn more about this stuff.
 


LT72884 said:
I usually use pepcid ac since it is magnisuim, calcium and a mixture of NH2, sulfur and a we bit of ox. And pepsin, which is part of pepcid ac comes from the pepermint plant.

Looks like the only correct thing here is the spelling of "calcium".
 


Borek said:
Looks like the only correct thing here is the spelling of "calcium".

::biggrin:: First time I've seen famotidine[/PLAIN] described that way!
 
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Borek said:
Looks like the only correct thing here is the spelling of "calcium".

now now, i was somewhat close. haha. I am still learnin all this stuff. its calcium carbonate (800mg) and magnesium hydroxide(165 mg) with Famotidine (10mg). calcium and magnesium calm stomach acid and sour stomach while the Famotidine does its thing with the cells of the body.

the Famotidine is.. well you all know o chem so you can imagine what it is. sulfamoylprop something or another. It is some sort of organic compound.

oh another thing i thought interesting, do not know if it ios related, but i know that they use sulfur to react with enzymes to create something else. I remember that from bio chem class but i don't know if that's why they used sulfur in this case..

anyway, my original question was why the citric acid in some acid reducers. i know citric acid a is a weak acid and pretty much is done away with from the baking soda. So are they putting it in the antacids as a liabilty issue? IE, to much sodium and or bicarb intake? thanks
 
Last edited:


LT72884 said:
Ok, quick question. I know that baking soda is great for heartburn, but why is it in certain medicines, they have sodium bicarb AND citric acid powder? My wife actually uses those two compounds to make bath fizzies. She adds esentual oils to them for health benefits and smells. haha. Anyway, once the sodium bicarb and citric acid mix in the water, they bubble and perform a basic base/acid reaction. But doesn't that mean, after the reaction, that the baking soda is now neutral and therefore will not stop the heart burn as well as just pure baking soda in water?

thanks

Sodium bicarbonate and citric acid when mixed with water will give that delightful looking fizz. The product is sodium citrate a conjugate base of a weak acid, and that would give a buffer solution to control the pH of a solution, in this case possibly if you ingest enough of the antiacid, the solution in your stomach.
And the tangy taste is also kind of refreshing.
 

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