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What is the pH of normal blood, urine & saliva?

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nalinidwivedi | Student, College Freshman | Honors

Posted July 13, 2012 at 11:55 AM via web

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What is the pH of normal blood, urine & saliva?

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trophyhunter1 | College Teacher | (Level 3) Senior Educator

Posted July 13, 2012 at 12:08 PM (Answer #1)

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PH is a measure of the hydrogen ion concentration in a substance. Water is considered to be neutral with a pH of 7. The descending range from 6 to 1 is the acid part of the pH scale, with 1 being the strongest acid. The numbers 8-14 is the alkaline scale, with 14 being the most alkaline or basic substance. The pH of blood is between 7.34-7.45. The pH of urine is slightly acidic at 6. Saliva has a pH range of 5.6-7.9--however, usually around a pH of 6. Low pH corresponds to high hydrogen ion concentation and vica versa.

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