250 Milliliters Laboratory Powder Funnel Made of Borosilicate

The 250 milliliters Laboratory Powder Funnel is a borosilicate glass transfer accessory for directing compatible powders, granules, and other dry materials into laboratory vessels. Its wide upper opening provides room for adding solid material, while the lower section is configured with a 24/40 ground-glass joint for compatible apparatus.

A powder funnel differs from a conventional narrow liquid funnel because its geometry is intended to help dry materials move into a receiving vessel with less bridging at the outlet. Actual flow depends on particle size, moisture, static charge, material density, and the properties of the powder being transferred. Use an appropriate tool or procedure rather than forcing compacted material through the glass.

The 24/40 connection on the 250 milliliters Laboratory Powder Funnel should be matched with glassware using the same taper designation. Verify the receiving joint before assembly and support the connected vessel securely. Borosilicate glass offers useful chemical and thermal characteristics, but material compatibility should still be confirmed for the specific substance being handled.

Inspect the funnel body, rim, stem, and ground joint for chips, cracks, deep scratches, or impact damage before use. Avoid striking the glass with metal scoops or tools. For fine or hazardous powders, use appropriate containment, ventilation, and personal protective equipment to limit dust exposure.

The 250 milliliters Laboratory Powder Funnel provides a practical solid-material transfer option for compatible 24/40 laboratory glassware. Browse additional funnels and accessories in our Borosilicate Glass Laboratory Equipment collection.

Frequently Asked Questions

What ground-glass joint does this powder funnel use?

The lower section has a 24/40 ground-glass joint for compatible laboratory apparatus.

What materials is a powder funnel intended to transfer?

It is intended for compatible powders, granules, and other dry materials.

What affects the flow of powder through the funnel?

Particle size, moisture, static charge, density, and material properties can affect flow. Do not force compacted material through the glass.