General Information About Solvent/Material Compatibility - Agilent Technologies InfinityLab LC Series User Manual

3 Using the Module
Solvent Information
General Information about Solvent/Material
Compatibility
Materials in the flow path are carefully selected based on Agilent's experiences in
developing highest-quality instruments for HPLC analysis over several decades.
These materials exhibit excellent robustness under typical HPLC conditions. For
any special condition, please consult the material information section or contact
Agilent.
Disclaimer
Subsequent data was collected from external resources and is meant as a
reference. Agilent cannot guarantee the correctness and completeness of such
information. Data is based on compatibility libraries, which are not specific for
estimating the long-term life time under specific but highly variable conditions of
UHPLC systems, solvents, solvent mixtures and samples. Information can also
not be generalized due to catalytic effects of impurities like metal ions,
complexing agents, oxygen etc. Apart from pure chemical corrosion, other
effects like electro corrosion, electrostatic charging (especially for
non-conductive organic solvents), swelling of polymer parts etc. need to be
considered. Most data available refers to room temperature (typically 20 – 25 °C,
68 – 77 °F). If corrosion is possible, it usually accelerates at higher temperatures.
If in doubt, please consult technical literature on chemical compatibility of
materials.
MP35N
MP35N is a nonmagnetic, nickel-cobalt-chromium-molybdenum alloy
demonstrating excellent corrosion resistance (for example, against nitric and
sulfuric acids, sodium hydroxide, and seawater) over a wide range of
concentrations and temperatures. In addition, this alloy shows exceptional
resistance to high-temperature oxidation. Due to excellent chemical resistance
and toughness, the alloy is used in diverse applications: dental products, medical
devices, nonmagnetic electrical components, chemical and food processing
equipment, marine equipment. Treatment of MP35N alloy samples with 10 %
NaCl in HCl (pH 2.0) does not reveal any detectable corrosion. MP35N also
demonstrates excellent corrosion resistance in a humid environment. Although
the influence of a broad variety of solvents and conditions has been tested, users
should keep in mind that multiple factors can affect corrosion rates, such as
temperature, concentration, pH, impurities, stress, surface finish, and dissimilar
metal contacts.
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