Thionyl chloride is also known as sulphuryl chloride, sulphur oxychloride, or sulfonyl chloride. It is a colorless gas with an irritating odor, and is used in a wide variety of industrial applications such as for the manufacture of pharmaceuticals, herbicides, pesticides, as an etching agent for metals, and as a catalyst for organic reactions.
When rubber is exposed to thionyl chloride, the rubber may become brittle and crack due to the corrosive nature of the chemical. In some cases, the chemical can cause the rubber to swell and lose flexibility, which can lead to the rubber failing to form a proper seal. Additionally, the thionyl chloride can cause the rubber to become discolored, which reduces the strength of the rubber.
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