Sodium percarbonate is known as an oxygen bleach. Sodium percarbonate is formed when sodium carbonate has been treated with hydrogen peroxide and when dissolved in water, releases a powerful combination of oxygenated hydrogen peroxide and sodium carbonate.There are two types of bleach, oxygen bleaches and chlorine bleaches. Oxygen bleaches are eco-friendly, whereas chlorine bleaches are hardcore and can make your eyes water!Sodium percarbonate is non-nmentally safe, biodegradable, and leaves no harmful by-products or residues which can harm the environment, is non-flammable, non-explosive and soluble in water.