HYDROGEN SULFIDE, DRY HOT Resistant O-Rings and Seals

Hydrogen sulfide is also known as sulfane, dihydrogen sulfide, and hydrosulfuric acid. It is a colorless, highly toxic gas with a characteristic rotten egg smell. It is commonly used in the oil and gas industry for sulfur removal and as a fuel additive. It is also used to produce chemical intermediates, fertilizers, and other products.

When rubber is exposed to hydrogen sulfide, it can cause rubber to swell, become brittle, and crack. This is especially true when the rubber has been exposed to high temperatures and humidity. The sulfur and other chemical compounds in the hydrogen sulfide can also corrode and degrade rubber, leading to premature failure. Furthermore, hydrogen sulfide can cause rubber to become sticky and tacky, which can cause it to stick to other surfaces and create a safety hazard.


Buna-N (NBR, Nitrile, Buna)

Buna-N o-rings also referred to as NBR o-rings and Nitrile o-rings are the most widely used o-ring material in the word because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, and the default choice for basic applications. Buna-N o-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or hash chemicals, acids, keytones and many others.

Common Names: Buna-N, Nitrile, NBR, Acrylonitrile Butadiene Rubber


Here are just a few of the products we have available. Buy online or submit a quote for a fast response.
Recommended Material:
B1000 Buna-N
Low Temp
-30 °F (-35 °C)
High Temp
250°F (125 °C)
Base Material
Buna-N (NBR, Nitrile, Buna)
Hardness
70
Color
Black
Attributes
  • General purpose material
Datasheet
Recommended Material:
B1001 Buna-N
Low Temp
-30 °F (-35 °C)
High Temp
250°F (125 °C)
Base Material
Buna-N (NBR, Nitrile, Buna)
Hardness
90
Color
Black
Attributes
  • For higher pressure applications
Datasheet
Recommended Material:
B1002 Buna-N
Low Temp
-30 °F (-35 °C)
High Temp
250°F (125 °C)
Base Material
Buna-N (NBR, Nitrile, Buna)
Hardness
70
Color
Black
Attributes
  • Compliant to FDA specification 21 CFR 177.2600 for use in food and beverage contact applications
Datasheet

Rubber Material Compatibility with HYDROGEN SULFIDE, DRY HOT

View some of our other material compatibility ratings with HYDROGEN SULFIDE, DRY HOT. 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
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