Consumables

The Premium Borosilicate Glass Powder Addition Funnel is an indispensable piece of laboratory glassware designed specifically for the safe and seamless introduction of solid reactants, catalysts, powders, or granular materials into ground-joint assemblies. By replacing standard liquid funnels, this specialized solid adding funnel prevents clogging at the neck, ensuring a continuous and controlled feeding rate.

Crafted from heavy-duty Borosilicate Glass 3.3, this funnel is highly durable and capable of withstanding extreme temperatures and rapid thermal transitions typical of chemical synthesis. Its standard tapered ground joint guarantees a secure, vapor-tight fit when coupled with multi-neck flasks, distillation reactors, or reflux setups. Widely used in pharmaceutical R&D, chemical engineering, and academic research institutions, this funnel provides the chemical inertness and reliable performance required for highly sensitive experiments.

Standard Frosted Joint: Features a high-precision, standard tapered ground joint (such as 14/23, 19/26, 24/29, 40/38). The meticulously frosted surface ensures an exceptionally tight, vapor-proof, and leak-proof seal when connected to flasks or reaction vessels.

Optimal Solid & Powder Feeding: Specifically designed with a short, wide stem and a wide-angle cone, providing a clog-free pathway that is ideal for the smooth addition of solid granules, crystals, and powders into reaction setups.

Superior Thermal Resistance: Manufactured from heavy-wall, premium borosilicate glass 3.3. It exhibits a very low coefficient of thermal expansion, outstanding heat resistance, and excellent thermal shock durability, making it safe for high-temperature processes.

Excellent Chemical Resistance: Built with superb resistance to aggressive chemical corrosion, acids, and strong bases, ensuring long-term structural integrity and zero sample contamination.

High Transparency & Fine Craftsmanship: Features high optical clarity and exquisite polishing with zero bubbles or sharp edges, allowing easy visual monitoring of the feeding rate.

Technical Specifications