Phosphorous trichloride, also known as phosphoryl trichloride, is a colorless and fuming liquid composed of phosphorus and chlorine. It is commonly used as an intermediate in the production of pharmaceuticals, pesticides, and rubber chemicals.
When rubber is exposed to phosphorous trichloride, it can cause a variety of problems, including swelling, cracking, hardening, and discoloration. The degree of damage to the rubber depends on the concentration of the chemical, the type of rubber, and the length of exposure. High concentrations of the chemical can cause accelerated aging and loss of elasticity, while prolonged exposure can cause complete degradation of the rubber.
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.
View some of our other material compatibility ratings with PHOSPHOROUS TRICHLORIDE. 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