Filter paper is an everyday laboratory tool, primarily used to separate solids from liquids during chemical analyses, gravity filtrations, or chromatography tests. Made from a porous material specifically designed to retain solid particles while allowing liquids to pass through, filter paper ensures effective clarification and reliable purification of samples.
Filter paper is available in several formats (circles, sheets, rolls), with pre-cut discs of various diameters, sheets, or adjustable rolls, and in different grades depending on your experimental needs:
• Qualitative filter paper: ideal for routine analyses or general filtration applications where filtrate purity is not critical.
• Quantitative filter paper: designed for precise analyses requiring high filtrate purity; often acid-treated to improve moisture resistance and chemical stability.
• Specific porosity filter paper: available with various pore sizes, allowing you to tailor filtration speed and particle retention capacity to your separation requirements.
Manufactured from natural cellulose fibers, or sometimes nylon, glass fiber, or quartz, these filter papers provide excellent chemical compatibility with most solvents and aqueous solutions. They can be used with a conical funnel or a vacuum filtration system for optimal flow control and retention efficiency.
