PYREX 31770-500C Gas Washing Bottle 500 mL with Coarse Fritted Cylinder

The PYREX 31770-500C Gas Washing Bottle 500 mL with Coarse Fritted Cylinder is a premium-quality, reusable laboratory glass apparatus designed for gas washing, gas absorption, humidification and controlled gas-liquid contact during scientific and chemical laboratory procedures. Manufactured by Corning from durable borosilicate glass, this tall-form gas washing bottle features a transparent cylindrical body, stable hexagonal base and removable standard taper hollow glass stopper with an integrated gas distribution tube. The apparatus incorporates a 12 mm diameter coarse fritted glass cylinder with a nominal pore distribution of 40–60 micrometres. This cylinder distributes incoming gas into small bubbles through the washing medium, increasing gas-liquid contact for laboratory washing and humidification applications. During operation, gas enters through the central vertical tube, passes through the submerged fritted cylinder, bubbles through the washing solution and exits through the sidearm outlet. The PYREX 31770-500C is particularly suitable for humidifying carbon dioxide-air mixtures used in cell culture incubators and other applications requiring controlled gas treatment. Its transparent construction allows easy observation of liquid levels and gas bubbling, making it suitable for chemical laboratories, biotechnology facilities, pharmaceutical research institutions, universities and scientific research centres. Key Features - Original PYREX laboratory glassware manufactured by Corning. - 500 mL nominal capacity. - Durable borosilicate glass construction. - Tall cylindrical bottle with stable hexagonal base. - Coarse fritted glass cylinder for gas distribution. - Nominal pore distribution of 40–60 µm. - Approximately 12 mm diameter fritted cylinder. - Standard taper 29/42 hollow glass stopper. - Approximately 8 mm outside diameter gas inlet and outlet tubing. - Promotes uniform gas dispersion through washing liquids. - Improves gas-liquid contact during washing and absorption. - Suitable for humidifying carbon dioxide-air mixtures. - Transparent construction for observing liquid levels. - Reusable laboratory apparatus. - Supplied as one complete gas washing bottle with stopper and fritted cylinder. Specification Details Brand PYREX Manufacturer Corning Catalogue Number 31770-500C Product Type Gas Washing Bottle with Coarse Fritted Cylinder Material Borosilicate Glass Capacity 500 mL Bottle Style Tall Form Bottle Shape Cylindrical Base Design Hexagonal Neck Style Short Stopper Type Hollow Glass Standard Taper Stopper 29/42 Fritted Distributor Glass Cylinder Frit Porosity Coarse Nominal Pore Distribution 40–60 µm Fritted Cylinder Diameter 12 mm Inlet/Outlet Tubing Outside Diameter 8 mm Approximate Bottle Diameter 63 mm Approximate Height Without Stopper 290 mm Approximate Height With Stopper 340 mm Colour Transparent Sterility Non-Sterile Reusable Yes Quantity per Pack 1 Complete Bottle Quantity per Case 1 Complete Bottle Applications Gas Washing, Gas Absorption, Gas Humidification, Cell Culture Research