White clothes are easy to form clothes in the cleaning, or the cleaning time is longer, and the yellow is formed. In some foods in order to reach a good role, food should take off the color, this time we need a bleach. The bleach is a hotel in the hotel's use to wash white items. Sodium nitrite is sometimes increased in bleach.

Since the use of sodium nitrite in the bleach is due to its ability to form sulfur dioxide, sulfur dioxide has strong oxidation resistance, and color oxidation can be oxidized. However, due to the nitrite, nitrite is easily generated, long-term use in clothes, bedburbs, easy to contact the human skin, producing cancer, and damage to the human body.

So the bleach is best to use, but don't increase the effect for the pursuit of pursuit. The material in life has two sides. The mutation causes mutations. It has been a bleach that is helpful in life. If it is due to many long-term use to form damage.