Borax, also known as sodium borate, sodium tetraborate, or disodium tetraborate, is a white crystalline powder with the chemical formula Na2B4O7·10H2O. It is composed of sodium ions (Na+) and borate ions (B4O7^2-) along with ten water molecules (H2O) in its structure. Borax is a versatile compound with various applications.”L.R” stands for Laboratory Reagent, indicating that the grade of this borax is suitable for laboratory use. L.R grade chemicals are of higher purity compared to technical-grade chemicals and are commonly used in analytical and research laboratories.