DOSE IT – Operating instructions V08 Technical data
26 INTEGRA Biosciences AG
6.4 Chemical compatibility
A particular advantage of peristaltic pumps is that the fluid remains enclosed inside the
tubing. Even chemical aggressive liquids can be transferred without the risk of damaging
parts of the pump as long they are compatible with the silicone tubing. The table below
rates the compatibility of silicone to a few of the chemicals commonly used in laboratories.
INTEGRA Biosciences AG assumes no liability for the information contained in the table.
Compatibility ratings for silicone tubing:
A = good, little to minor effects (0-5 % volume swell).
B = fair, moderate effects, not recommended for continuous use (5-10 % volume swell).
C = critical, not recommended (10 % or greater volume swell).
To determine the compatibility silicone to a chemical not listed in the table, please consult
one of the several tables available on the internet, e. g. Watson Marlow with material
Pumpsil (silicone).
It is the responsibility of the users to ensure the chemical compatibility. Before using a
critical chemical, immerse a short piece of the tubing in a closed container of the chemical
for 48 hours. Check the tubing for sings of swelling, softening, discoloration, embrittlement
or any other attack.
Chemical Rating
Acetic acid CH3COOH B
Acetone C3H6O C
Acetonitrile C2H3N C
Dimethyl sulfoxide DMSO A
Ethanol C2H5OH B
Hydrochloric acid 33 % HCl C
JAVEL NaClO A
Phenol C6H5OH C
Sodium carbonate Na2CO3 A
Sodium hydroxide 50 % NaOH B
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