Tripotassium phosphate, also known as potassium phosphate tribasic, is an inorganic chemical compound that is widely used in the food industry as a preservative, a texturizer and an emulsifier. Its other common applications include being used as a fertilizer, a buffering agent, a dispersant, a thickener and a chelating agent in various industrial processes.
When exposed to tripotassium phosphate, rubber materials may show signs of discoloration or erosion. The chemical has the potential to degrade the rubber over time, leading to cracks and other structural damage. The material's resistance to this chemical is also likely to be reduced, resulting in increased permeability that can allow other compounds to penetrate the rubber. Additionally, the rubber may become more brittle and prone to breakage.
Fluorosilicone o-rings are a hybrid of silicone and FKM resulting in great jet fuel resistance with high and low temperature performance. Also widely used in semiconductor Ashing equipment with strong resistance to oxygen plasma, FVMQ fluorosilicone o-rings also feature excellent flexibility, compression resistance, aging and sunlight resistance, and overall wide range of basic chemical resistance.
View some of our other material compatibility ratings with TRIPOTASSIUM PHOSPHATE. If you don't see what you're looking for or need more guidance, our team of experienced sealing design engineers can help select the best sealing products and material for your specific application.
View Full Chemical Compatibility Guide