Oct 30, 2018 · When vial breakage, vial weight, disposal costs and surface inertness are a concern, the 1.7mL polypropylene vial is an excellent alternative to glass vials. Polypropylene has a heat resistance up to 135 degrees Celsius. For use in applications for Ion Chromatography, Capillary Electrophoresis (CE+CE/MS), Atomic Absorption, and is ideal for pH