A Column Chromatography G3 25x300mm Pyrex refers to a laboratory glassware column used for separating chemical mixtures, featuring a specific G3 porosity fritted disc. 

Product Specifications

• Dimensions: 25 mm inner diameter (ID) and 300 mm effective length.
• G3 Porosity: Equipped with a G3 grade sintered (fritted) disc with a pore size typically between 15–40 µm. This disc supports the stationary phase (like silica gel) and is used to filter out impurities in general chemical solutions.
• Material: Constructed from Pyrex (Borosilicate Glass 3.3), known for high thermal shock resistance and chemical durability against acids and organic solvents.
• Stopcock: Usually features a PTFE (Teflon) stopcock for precise flow control without the need for grease
• Function: It supports the stationary phase (like silica gel) while allowing the mobile phase to flow through without losing fine particles.
• Stopcock: Most standard versions include a PTFE (Teflon) stopcock to precisely control the flow rate of the eluent.

• Separation & Purification: Isolating active ingredients from complex mixtures or removing impurities from chemical compounds.
• Drug Estimation: Used in pharmaceutical labs to estimate drug concentrations in various formulations.
• Environmental Testing: Identifying pollutants in environmental samples.