The acidity of mineral water, measured by its pH level, varies depending on whether it is still or sparkling. It does not have a single fixed pH value.
According to research findings:
- Still mineral drinking water typically has a pH ranging between 7.1 and 7.5.
- Sparkling mineral water tends to be more acidic, with a pH between 5.3 and 6.
Understanding pH and Mineral Water
pH is a scale used to specify the acidity or basicity (alkalinity) of an aqueous solution.
- A pH of 7 is considered neutral.
- A pH below 7 is acidic.
- A pH above 7 is alkaline (or basic).
Based on this scale and the provided data:
- Still Mineral Water: With a pH between 7.1 and 7.5, still mineral water is generally neutral to slightly alkaline.
- Sparkling Mineral Water: With a pH between 5.3 and 6, sparkling mineral water is acidic.
The higher acidity in sparkling water is primarily due to the dissolved carbon dioxide (CO2), which creates carbonic acid.
pH Levels of Different Water Types
Here's a summary of the pH levels based on the reference and related context:
| Water Type | pH Range | Acidity/Alkalinity |
|---|---|---|
| Still Mineral Water | 7.1 to 7.5 | Neutral to Alkaline |
| Sparkling Mineral Water | 5.3 to 6 | Acidic |
| Home Filtered Water | Approximately 7.5 | Alkaline |
| Tap Water | Approximately 7.5 | Alkaline |
| Boiled Tap Water | Slightly higher than 7.5 | More Alkaline |
In conclusion, while still mineral water is close to neutral or slightly alkaline, sparkling mineral water is moderately acidic due to the presence of carbonation.
