Bleach
The active ingredient in bleach is a chemical compound called sodium hypochlorite. It acts as an oxidizing agent, ionizing other materials by removing electrons from them; this is why it removes stains from clothes and kills germs. The oxidizing properties of bleach accelerate rusting; iron loses electrons more readily in the presence of bleach than in plain water.
一般洗衣機清潔劑,主要成份係 過氧碳酸鈉 (Sodium percarbonate)
Oxygen bleach, or sodium percarbonate, is made from sodium carbonate (also know as soda ash) and hydrogen peroxide. It works by releasing oxygen once it is exposed to water. This release of oxygen lifts stains and dirt off whatever you’re cleaning. The only by-product is soda ash.
Oxygen bleach is better than chlorine bleach because:
1. It is safer for your health.
The health risks of chlorine bleach are too great as explained above. You still need to take care when using oxygen bleach, such as avoiding contact with eyes, wearing gloves if your skin is sensitive, not inhaling it, and keeping it out of reach of children.
2. It is safer for the environment.
Sodium percarbonate is an eco-friendly chemical which decomposes into oxygen, water and natural soda ash when it contacts with water making it biodegradable and septic safe (though it is not grey water safe due to the high salt content). It contains no phosphorous or nitrogen. We also note that Exit Mould ingredients are tested on rabbits (2. See excerpt of MSDS for Exit Mould at end).