Sodium sulfite, also known as sodium sulphite, is a chemical compound made up of sodium and sulfite ions. It is a white powder that is commonly used as a preservative in food, a bleaching agent for textiles, and a reagent in some chemical processes. It is also used in the production of paper, leather, and other products.
Common types of failures when rubber is exposed to sodium sulfite include cracking, swelling, discoloration, and embrittlement. These failures can be caused by oxidation of the rubber due to the sulfite ions, as well as by chemical attack on the rubber's molecules. The rubber may also become brittle over time due to the presence of sodium sulfite, reducing its flexibility and ultimately leading to failure of the rubber part.
Viton ® o-rings from Marco Rubber offer excellent compatibility with a range of chemicals, oils and resist high temperatures up to 400F. Viton ® is also known as FKM made of fluoroelastomer one of the most versatile and widely used sealing materials.
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