pH: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Modified link of Web site: Chemistry LibreTexts - The pH. | Sep 18, 2026 | ||
| Add new Web site: Khan Academy - The pH scale. | Jan 12, 2026 | ||
| Add new Web site: IOPscience - Journal of Physics: Conference Series - Implementation of the primary pH-measurement system and its uncertainty estimation (PDF). | Oct 11, 2025 | ||
| Added a Top Questions section. | Sep 03, 2025 | ||
| Add new Web site: International Union of Pure and Applied Chemistry - Measurement of the pH. Definition, Standards, and Procedures (PDF). | Aug 22, 2025 | ||
| Add new Web site: University of California - Agriculture and Natural Resources - What Is pH and Why Do We Care? (PDF). | May 16, 2025 | ||
| Add new Web site: OpenStax - Microbiology - The Effects of pH on Microbial Growth. | Feb 03, 2025 | ||
| Add new Web site: National Center for Biotechnology Information - PubMed Central - Role of pH Value in Clinically Relevant Diagnosis. | Dec 09, 2024 | ||
| Add new Web site: Lenntech - pH and alkalinity. | Jul 22, 2024 | ||
| Add new Web site: USGS - Water Science School - pH and Water. | Jan 25, 2024 | ||
| Add new Web site: Chemistry LibreTexts - The pH. | Mar 27, 2023 | ||
| Add new Web site: Chemistry LibreTexts - The pH. | Mar 27, 2023 | ||
| Add new Web site: United States Environmental Protection Agency - pH. | Aug 29, 2022 | ||
| New media added. | Jun 03, 2020 | ||
| Changed “National Bureau of Standards” to “National Institute of Standards and Technology.” | May 18, 2020 | ||
| Add new Web site: BBC Bitesize - The pH scale and neutralisation. | Jan 11, 2019 | ||
| Mentioned litmus paper and Ericaceae species that benefit from acidic soils. | Jan 20, 2017 | ||
| Add new Web site: Utah State University Extension - What is pH? | Nov 30, 2016 | ||
| Add new Web site: Elmhurst College - Chemistry@Elmhurst - pH Scale. | Nov 30, 2016 | ||
| Add new Web site: National Oceanic and Atmospheric Administration - Pacific Marine Environmental Laboratory - A Primer on pH. | Nov 30, 2016 | ||
| Added new Web site: Hyperphysics - pH. | Sep 29, 2008 | ||
| Added new Web site: The Power of Protons: An Ongoing Attempt to Simplify the Understanding of Calculations Involving pH. | Jun 29, 2006 | ||
| Article added to new online database. | Jul 20, 1998 |
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