A sintered funnel is a laboratory apparatus that consists of a glass funnel with a disc of sintered glass at the bottom. The porous material of the sintered glass allows liquids to be filtered by trapping solid particles while allowing the liquid to flow through. Sintered funnels are commonly used in chemistry for various filtration processes.

sintered iron or bronze

Formed into a mass by heat and pressure

Sintered glass crucibles are typically made from borosilicate glass that has undergone a sintering process. This process involves heating the glass to a high temperature to create a porous structure that enhances its chemical resistance and durability. Sintered glass crucibles can withstand high temperatures and corrosive chemicals, making them suitable for a variety of laboratory applications.

Porosity 4 sintered glass typically has pore sizes ranging from 4 to 16 micrometers, with an average pore size of around 8 micrometers. The pore size distribution can vary depending on the specific manufacturing process and conditions used to produce the sintered glass material.