ITEM NAME:Porcelain Buchner Funnel Diameter 120mm Chemistr Labware Tool Description: - Thermal Shock Resistance - average coefficient of expansion from 20Â ° C to 200Â ° C is 3.56 x 10-5. - Gradually increasing to 4.69 x 10-5 at 1050Â °C. - Glaze - No softening occurs up to 1000Â °C. - Resistance to Chemical Action; Resistance to acids and alkalies is excellent, except for hydrofluoric acid. - Appliance:Chemical,scientific research experiment,medicine and military research. - For decompression and filtration, use with filter bottles and filter paper. Specification: - Material: ceramics - Size: (Approx. ) - Diameter: 40mm/1.57'' ; Height: 65mm/2.56'' - Diameter: 60mm/2.36'' ; Height: 115mm/ 4.53'' - Diameter: 80mm/3.15'' ; Height: 140mm/ 5.5'' - Diameter: 100mm/3.94'' ; Height: 170mm/6.69'' - Diameter: 120mm/4.7'' ; Height: 185mm/7.28'' Package Included: 1 Piece Buchner Funnel.1 Piece Buchner Funnel. - Glaze - No softening occurs up to 1000Â °C. - Thermal Shock Resistance - average coefficient of expansion from 20Â ° C to 200Â ° C is 3.56 x 10-5. - Resistance to Chemical Action; Resistance to acids and alkalies is excellent, except for hydrofluoric acid.