Sodium Sulfite Sigma Na2so3

Sodium sulfite has many uses. In industry, it is mainly used as reducing agent, bleaching agent and preservative. For example, it reacts with silver salts to develop visible images on exposed film, so it is often used in photography and imaging technology. In addition, due to its reducing properties, sodium sulfite is also effective in killing bacteria and viruses and is used to purify water or disinfect medical tools. In the food industry, sodium sulfite is commonly used as a bleaching agent, preservative, loosening agent and antioxidant to extend the shelf life of food and improve its appearance and taste. At the same time, in the textile printing and dyeing industry, sodium sulfite is also used as a bleaching agent and vat residual dye.