The Chemical Properties of Lemon Juice

Beyond its practical applications, lemon juice is also a part of refreshing summer drinks.
••• lemon juice image by Amornrat Makbodee from Fotolia.com

Lemon juice is a versatile substance with applications for everything from hair care to baking to household cleaning. Lemon juice can lighten hair, sour milk and help heal a sore throat. It's a common household staple and is a component of many products, whether for its chemical properties or simply its fresh scent.

Low pH

One of the primary chemical properties of lemon juice is its low pH. With a highly acidic pH level of 2, lemon juice lies just below stomach acid on the pH scale. Lemon juice's high acidity means that it has a high concentration of hydrogen ions. Like other acidic substances, lemon juice is sour and can corrode metals. Its corrosive properties make it a useful ingredient in cleaning products, because it softens the minerals in hard water, allowing the cleaning agents to work more effectively.

Source of Vitamin C

Lemon juice contains high levels of vitamin C. On average, lemons contain about twice as much vitamin C as oranges. Physicians first discovered this characteristic of lemons in the seventeenth century, when they found that consuming lemon juice every day could prevent outbreaks of scurvy. However, the high levels of vitamin C in lemon juice are lost if the juice is left exposed to the air for a long period of time.

Antimicrobial Properties

Research suggests that lemon juice also has certain antimicrobial properties. Studies indicate that lemon juice can stop the growth of aspergillus mold, and lemon juice has been used to disinfect drinking water and deactivate the rabies virus. This property of lemon juice seems to be tied to its citric acid content, which can break down the cell membranes of bacteria.

Related Articles

List of Acidic Liquids
List of Household Bases & Acids
White Vinegar & Isopropyl Alcohol Uses
Why Do Pine Trees Give Off Sap?
Differences Between Glycolic Acid & Glycerin
About Bleach Neutralizers
Facts About Lemons for Kids
Citric Acid Powder Uses
Characteristics of Aquatic Plants
PH Levels of Fruit
What is a Propionic Acid?
What Is Propylene Glycol
The Difference Between Sucralose & Fructose
What is Sodium Benzoate?
Bases Used As Common Household Products
What is Ethanolic Potassium Hydroxide?
The Effect of Vinegar on Chicken Bones
What Is Sodium Lauryl Sulfate?
How to Extract Lemon Oil
The Properties of Acidic Substances

Dont Go!

We Have More Great Sciencing Articles!