Whatman 2800-185 Extraction Thimble, High-Performance Cellulose, 18mm x 55mm, Single Thickness (1mm), 25/pk

A Whatman cellulose extraction thimble is used in solid-liquid extraction procedures, most commonly with Soxhlet extraction systems. It holds solid samples while allowing solvents to pass through and extract compounds such as lipids, pesticides, or other analytes.

These thimbles are manufactured from high-quality alpha cellulose cotton linter, which provides excellent mechanical strength and chemical compatibility during extraction procedures.

A single-thickness thimble with a 1 mm wall provides a balance between good solvent flow and reliable particle retention. This thickness is commonly used for routine Soxhlet extractions where durability and efficient filtration are required.

Cellulose extraction thimbles are widely used for fat analysis in food products, pesticide extraction from soil samples, and environmental or chemical analysis involving solid-liquid extraction techniques.

High-performance cellulose extraction thimbles are typically suitable for temperatures up to about 120 °C (248 °F), making them compatible with many common organic solvent extraction procedures.