Na2S2O5 Sodium metabisulfite food grade

chemical

Used for the purification of safety powder, sulfadimethylpyrimidine analgin, caprolactam, chloroform, phenylsulfone and benzaldehyde.The photographic industry is used as a fixing agent.The spice industry is used to produce vanillin.Used as industrial preservative for brewing, rubber coagulant and dechlorination agent for cotton bleaching.Organic intermediates, dyes, leather - making agents used as reducing agents for electroplating, oil - field wastewater treatment and mine dressing.

industrial

Used in printing and dyeing, organic synthesis, printing, leather making, pharmaceutical and other departments;In food processing as a preservative, bleach, loose agent.

As a chemical reagent

(printing, dyeing, photography, etc.), used as bleaching agent mordant, reducing agent rubber coagulant, also used in organic synthetic pharmaceuticals and spices.