Hydrocyanic acid, also known as hydrogen cyanide (HCN), is a colorless and highly volatile liquid that is widely used in the chemical, pharmaceutical and plastic industries. Common applications of hydrocyanic acid include the production of nylon, acrylic fibers, adhesives, plasticizers, and dyes.
When rubber is exposed to hydrocyanic acid, it can cause the rubber to swell, discolor, crack and become brittle. Hydrocyanic acid is also known for causing rapid swelling and softening of elastomers. Additionally, hydrocyanic acid can attack rubber surfaces and cause them to become sticky and tacky, which can lead to further deterioration of the rubber over time.
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 HYDROCYANIC ACID. 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