PFA conical graduated cup is made of high-purity PFA material (a type of advanced Teflon) and is a specialized tool for laboratory processing of highly corrosive reagents. The cup has a conical shape and precise graduated markings, making it easy to measure and pour liquids directly. It has excellent chemical resistance and acid resistance, and can be safely used to hold hydrofluoric acid, hot concentrated acid, strong alkali, and organic solvents. As an ideal Lab cup for trace analysis, its extremely low precipitation characteristics effectively prevent metal ion contamination, making it an essential tool for semiconductor, ultrapure analysis, and high-end chemical research.

Features & Advantage
Ultra High Chemical Inertness
Almost resistant to all chemicals: able to resist corrosion from strong acids (including aqua regia, hydrofluoric acid), strong bases, strong oxidants, organic solvents, and mixed solutions. This is its most core advantage, which cannot be compared to glass, PP, PE and other plastics.
No dissolution and adsorption: The bottle itself will not dissolve impurities such as metal ions into the sample, nor will it adsorb trace components in the sample, ensuring the integrity and analytical accuracy of the sample.
Extremely High Transparency
The appearance is similar to glass, and the transparency is much higher than that of ordinary FEP (another type of transparent fluoroplastic) bottles, making it convenient to directly observe the color, state, volume, and whether there is sediment in the sample inside the bottle without opening the lid.
Extremely low background value of metal ions
High purity PFA raw materials undergo strict purification during the production process, and their inherent metal ion content (such as Na, K, Li, Ca, Mg, Fe, Al, Zn, etc.) is extremely low, usually reaching ppt (parts per trillion) to ppb (parts per billion) levels. This is crucial for trace and ultra trace analysis (such as ICP-MS, ICP-OES), as it can effectively prevent contamination of the sample by the container itself.
Wide Temperature Resistance Range
It can usually be used for a long time within the temperature range of -200 ℃ to+260 ℃. It can be used for long-term storage in liquid nitrogen and ultra-low temperature refrigerators, as well as for high-temperature water bath digestion or drying in ovens, without any change in performance.
Excellent Sealing Performance
Usually paired with bottle caps and inner caps/gaskets made of high-purity PFA, a perfect sealing system is formed to prevent volatile components from escaping or samples from being contaminated by the outside world.
Flexibility & Durability
Compared to glass, PFA has excellent toughness, is not easily broken, has strong impact resistance, and is safer to use.