Chemical Equation For Borax: A Comprehensive Guide

Periodic Graphics The chemistry of slime Chemistry classroom


Borax, also known as sodium borate, is a mineral commonly used in cleaning products, laundry detergents, and even as a flux in metallurgy. It is an important compound that has a variety of uses in both industrial and household settings. In this article, we will discuss the chemical equation for borax and its various applications.

The Chemical Formula for Borax

The chemical formula for borax is Na2B4O7•10H2O. This formula indicates that borax is a hydrated compound that contains two sodium atoms (Na), four boron atoms (B), seven oxygen atoms (O), and ten water molecules (H2O). The dot in the formula indicates that the water molecules are not chemically bonded to the rest of the compound but are instead held in a crystal lattice structure.

How to Write the Chemical Equation for Borax

To write the chemical equation for borax, we need to break down the compound into its constituent elements. Borax contains sodium (Na), boron (B), oxygen (O), and water (H2O). The chemical equation for borax is: 2Na2B4O7•10H2O + heat → 4NaBO2 + B2O3 + 10H2O This equation shows that when borax is heated, it decomposes into sodium metaborate (NaBO2), boron oxide (B2O3), and water (H2O). This reaction is also known as the borax bead test and is often used in chemistry to test for the presence of certain metals.

Applications of Borax

Borax has many uses in both industrial and household settings. Some of its applications include: – Cleaning: Borax is a popular ingredient in many cleaning products due to its ability to break down dirt and grease. It is often used as a natural alternative to harsh chemical cleaners. – Laundry: Borax is also used in laundry detergents as a water softener and stain remover. – Metallurgy: Borax is used as a flux in metallurgy to help remove impurities from metals during the smelting process. – Agriculture: Borax is used as a fertilizer in agriculture to provide plants with essential micronutrients such as boron. – Fire retardant: Borax is also used as a fire retardant in some applications due to its ability to prevent the spread of flames.


Borax is an important compound that has many applications in various industries. Understanding the chemical equation for borax is essential for understanding its properties and uses. Whether you’re using borax to clean your home, fertilize your garden, or purify metals, it is a versatile and valuable compound that has many practical applications.