Nitric Acid, also known as aqua fortis and spirit of niter, is a highly corrosive and oxidizing mineral acid. It is widely used in the chemical, pharmaceutical, and metalworking industries, as well as for the production of fertilizers, explosives, and dyes.
When rubber is exposed to nitric acid, the chemical can cause swelling, hardening, and cracking of the material. As nitric acid is highly corrosive, this can lead to loss of elasticity and eventual failure of the rubber seal. Additionally, certain rubber types are more prone to degradation from nitric acid than others, such as natural rubber, which is particularly sensitive to the acid.
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 NITRIC ACID, 3M TO 158?F. 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