焦亞硫酸鈉主要用途：用于生產保險粉，磺胺二甲基嘧啶、安乃近，己內酰胺等；用于氯仿，苯丙砜和苯甲醛的凈化。照相工業用作定影劑的配料；香料工業用于生產香草醛；用作釀造工業防腐劑；橡膠凝固劑和棉布漂白后脫氯劑；有機中間體；用于印染、制革；用作還原劑；用作電鍍業、油田的廢水處理以及用作礦山的選礦劑等
Main uses of Sodium metabisulfite: used in the production of sodium hydrosulfite, sulfamethazine, Metamizole, Caprolactam, etc; For the purification of chloroform, phenylpropyl sulfone and Benzaldehyde. Ingredients used as fixing agents in the photography industry; Perfume industry is used to produce Vanillin; Used as a preservative in the brewing industry; Rubber coagulants and dechlorinating agents after bleaching cotton cloth; Organic intermediates; Used for printing, dyeing, and leather making; Used as a reducing agent; Used for wastewater treatment in electroplating industry, oil fields, and mineral processing agents in mines
