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SODIUM SULFITE Chemical compatibility with O-rings, rubbers, & plastics

Sodium Sulfite is a white, crystalline inorganic compound with the chemical formula Na2SO3. It is used in various industrial, chemical, and food applications primarily as a reducing agent and preservative. In the food industry, Sodium Sulfite is employed as a preservative and antioxidant, helping to prevent spoilage and discoloration in dried fruits, vegetables, and beverages. It is also used in the paper and pulp industry for the bleaching of wood pulp and in the production of certain cosmetics and personal care products. In the chemical industry, Sodium Sulfite is used as a reagent in the synthesis of various organic compounds and as a reducing agent in chemical reactions. Proper handling and storage of Sodium Sulfite are essential to maintain its quality and prevent moisture absorption. It is generally considered safe for use in regulated amounts, although proper safety measures, including the use of appropriate protective equipment and adherence to handling protocols, are essential to prevent irritation and other health hazards. Its versatility and effectiveness make Sodium Sulfite a valuable chemical in numerous applications.

Need SODIUM SULFITE resistant plastics, O-rings, rubbers, and seals? Get in touch now!


Canyon Components strives to meet all customer service requests. If you need something that isn't listed below, feel free to contact a Canyon Components product and application consultant and let our knowledgeable staff help you design the perfect part for your needs.

Paint covered o-ring
MaterialPerformanceGet a quote
FFKM (CanRez™, Kalrez®, Chemraz®)Excellent: <15% SwellingGet a quote
FKM ETP (Viton® Extreme)Excellent: <15% SwellingGet a quote
FKM (Viton®)Excellent: <15% SwellingGet a quote
NBR (Buna-N, Nitrile)Excellent: <15% SwellingGet a quote
HNBR (Hydrogenated Nitrile)Excellent: <15% SwellingGet a quote
EPDM (Ethylene Propylene)Excellent: <15% SwellingGet a quote
Aflas® (TFE/P, FEPM)Excellent: <15% SwellingGet a quote
Silicone (VMQ, PVMQ)Excellent: <15% SwellingGet a quote
Fluorosilicone (FVMQ)Excellent: <15% SwellingGet a quote
Polyurethane (PU, AU)--- Insufficient Testing DataGet a quote
Teflon® (PTFE)--- Insufficient Testing DataGet a quote
Neoprene (Chloroprene)--- Insufficient Testing DataGet a quote
SBR (Styrene-Butadiene)--- Insufficient Testing DataGet a quote
ACM (Acrylic Rubber)--- Insufficient Testing DataGet a quote
Butyl (IIR, Isobutylene Isoprene)--- Insufficient Testing DataGet a quote
Butadiene Rubber (BR)--- Insufficient Testing DataGet a quote
Isoprene Rubber (Polyisoprene)--- Insufficient Testing DataGet a quote
Natural Rubber (NR)--- Insufficient Testing DataGet a quote
Hypalon (CSPE)--- Insufficient Testing DataGet a quote
Metal Piston

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