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Smart Sipper
Thermo Scientific Evolution 200 Series User Guide 423
Troubleshooting
Pump Tubing Chemical Compatibility
We provide two kinds of pump tubing: silicone rubber (Standard Tubing Pack) and Viton®
(Acid Tubing Pack). Silicone rubber is suitable for most aqueous solutions and is
recommended when the pump will be used for prolonged periods. Viton withstands many
strong acids, alkalis and organic solvents, which corrode silicone rubber.
Use the table below to verify that your chemicals are compatible with the provided tubing, or
other tubing that is compatible and meets our specifications.
The table is only a general guide. Each rating is based on ideal testing conditions used by
tubing manufacturers. Temperature, length of service, chemical concentration, etc. can affect
chemical resistance. Test the tubing under your experimental conditions.
Chemical Compatibility for Silicone, Viton and Norprene Tubing
Key Meaning
XCan be used
—Marginal
Blank Not tested
N Not recommended
Chemical Nor Sil Vit Chemical Nor Sil Vit
Acetaldehyde X X N Arsenic salts X X
Acetates X—N Barium salts XXX
Acetic acid (<5%) XXX Benzaldehyde XNN
Acetic acid (>5%) X X — Benzene N N X
Acetic anhydride X N Benzene sulfonic acid X
Acetonitrile — Benzoic acid X — X
Acetone X — Benzyl alcohol X X
Acetyl bromide Bleaching liquors X — X
Acetyl chloride Boric acid X X X
Air XXX Bromine XNX
Alcohols XXX Butane XNX
Aliphatic hydrocarbon X — N Butyl acetate N
Aluminum chloride X — N Butyl alcohol X — N
Aluminum sulfate X X X Butyric acid X —
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