Ph of Boric Acid: 4 factors you should know !

What is the pH of Boric Acid?

The pH of boric acid is approximately 5.1. This means that boric acid is weakly acidic and is considered a weak acid. 

What is the pH of other Inorganic Acids?

The pH of some common inorganic acids are mentioned below.

Name of Organic AcidpH Value
Boric acid5.1
Carbonic acid4 to 5
Phosphoric acid2 to 3
Sulfuric acid0 to 1
Nitric acid0 to 1

What is the significance of knowing Boric Acid pH?

Knowing the pH of boric acid is important for various reasons, including

  1. Medical applications: Boric acid is commonly used in medical applications, such as eye drops and antiseptics. The pH of boric acid is important in determining its effectiveness and safety in these applications.
  2. Insecticides: Boric acid is also used as an insecticide, particularly against ants, cockroaches, and termites. The pH of boric acid is important in determining its toxicity to insects and its effectiveness as an insecticide.
  3. Industrial uses: Boric acid is used in various industrial applications, such as in the production of glass, ceramics, and detergents. The pH of boric acid is important in determining its compatibility with other chemicals used in these applications.
  4. Chemical reactions: The pH of boric acid can also affect chemical reactions involving boric acid, such as its reaction with other acids or bases. Knowledge of the pH can help in predicting the outcome of such reactions.

Factors Affecting the pH of Boric Acid

The pH of boric acid can be affected by various factors, including

  1. Concentration: The pH of boric acid varies with its concentration. As the concentration increases, the pH decreases, and as the concentration decreases, the pH increases.
  2. Temperature: The pH of boric acid is also affected by temperature. Generally, the pH decreases as the temperature increases and vice versa.
  3. Presence of other ions: The presence of other ions can also affect the pH of boric acid. For example, the presence of hydrochloric acid can decrease the pH of boric acid, while the presence of sodium hydroxide can increase the pH.
  4. Time: The pH of boric acid can change over time due to factors such as air exposure or reaction with other chemicals.
  5. Dissolution: The pH of boric acid can also be affected by the method of dissolution. For example, dissolving boric acid in water may result in a different pH than dissolving it in a different solvent.

About the author

I am Leena Raswant, a chemistry postgraduate. I thrive on challenges and continually specified goals. I aim to learn, unlearn, relearn and spread my knowledge in the best possible ways.

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