Stay safe; stay well.

Hi, thank you for visiting Approach Wellness. Please DO NOT rely on our website or any health and wellness blog for personal medical decisions, especially concerning the novel coronavirus. Always consider authoritative primary sources for guidance and consult with a physician and follow local protocol if you do not feel well. COVID-19 is an emerging, rapidly evolving situation. Visit our coronavirus page for links to the latest information and research.

The pH scale ranges from 0 to 14.

by Harry Sorensen
(Qld Australia)

Your notes on pH start with

The pH scale ranges from 0 to 14.

This is false.. (but often stated in bad chemistry texts )

10 molar hydrochloric acid has pH of -1

a cold saturated ammonia solution has high pH

I agree that for body pH the range 5 to 8 is practical.

Check the definition of pH scale as stated by its inventor Sorensen

Comments for The pH scale ranges from 0 to 14.

Click here to add your own comments

Approach Wellness stands corrected! Harry's Right!
by: Brian

Wow! Søren Peder Lauritz Sørensen introduced the pH scale and got a Google Doodle dedicated to him.

Harry, thank you for the excellent and informative feedback. The 0 to 14 idea seems to have run rampant. Thank you for your comment and research. I love how the community here provides additional resources and information to help.

Your mission shall continue. I found a Vox article about Sorensen that also states that the pH scale goes from 0-14.

https://www.vox.com/2018/5/29/17404820/spl-sorensen-google-doodle-ph-scale

From Wikipedia - "The pH value can be less than 0 for very strong acids or greater than 14 for very strong bases."

Lim, Kieran F. (2006). "Negative pH Does Exist". Journal of Chemical Education. 83 (10): 1465. Bibcode:2006JChEd..83.1465L. doi:10.1021/ed083p1465.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Body pH Questions.