Phosphoric acid is a compound found in
almost all soft drinks people drink. This compound falls under the corrosive
mineral category and classified as an inorganic acid (Gad, 2005, p. 414). The
two processes by which you can make this acid is Wet process and Thermal
process (Shakhashiri, n.d. p. 1). In the wet process, a phosphate rock is mixed
with sulphuric acid and the product is large quantities of phosphoric acid.
This is then added to fertilizers. The thermal process takes the element
phosphorous from phosphate rock and burned in air, then water is added to make
phosphoric acid (Shakhashiri, n.d., p. 1). The acid made from thermal process
is then added into our detergents, medicine, and food (Shakhashiri, n.d., p. 2)..
This acid is also present in our water softeners where it removes calcium and
magnesium from our water to make it ‘soft’ . In our food
such as beer, jams,
soft drinks, and jellies, the tart acidic flavour is because of the phosphoric acid added to them. When we digest this
acid into our tissue, phosphoric acid can cause multiple problems in our body.
A study shows that if a person drinks two or more cola drinks per day, they can
double their risk of kidney disease. The acid is also associated with kidney
stones. So, drinking coca-cola can cause the kidney to develop small white
solid ‘rocks’
in your body that have to be pushed out of your body
through urine. U.S. department of health and services report that the pain this
causes can be severe depending on the size of the kidney stone (2013). The
phosphoric acid can also lower your bone density because bone needs calcium and
this acid can remove calcium from your bone thus causing hypocalcemia which
leads to weaker bones.
Reference
Gad, S. (2005).
Phosphoric acid. Encyclopedia of Toxicology (Second Edition). 414-415. http://dx.doi.org/10.1016/B0-12-369400-0/00761-4.
Kidney Stones.
(2014). Retrieved April 4, 2014, from http://en.wikipedia.org/wiki/File:Blausen_0595_KidneyStones.png
National Kidney and
Urologic Diseases Information Clearinghouse (NKUDIC). (2013). U.S Department of
health and Human services. Retrieved from http://kidney.niddk.nih.gov/kudiseases/pubs/stonesadults/.
Shakhashiri, (n.d).
Chemical of the Week Phosphoric Acid, H3PO4. Retrieved March 17, 2014, from http://scifun.chem.wisc.edu/chemweek/pdf/phosphoric_acid.pdf.
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