Cytiva's Whatman cellulose thimbles are manufactured from high-quality alpha cellulose cotton linter for high-performance use in automated Soxhlet extractor systems. Used in air and waste gas analysis. Used in a wide variety of solid-liquid extraction studies, including lipid and pesticide analyses in food and soil samples Suitable for temperatures up to 120°C (248°F) Excellent mechanical strength and retention Wall thickness of standard thimbles is 1–1.5 mm to support application need Option for double thickness for added rigidity Other Whatman extraction thimbles are available from Cytiva's business. Cellulose thimble options for Soxhlet extractor systems Standard extraction thimbles have a wall thickness of 1–1.5 mm. Double-thickness thimbles have a wall thickness of approximately 2 mm for applications that require higher retention, increased wet or dry strength, or increased rigidity. Measurements can be matched to specific Soxhlet extractor systems.