There are a vast range of applications in and out of the laboratory.
Filter paper chemistry function.
Most filter papers are made on small paper machines for laboratory filters the machines may be as small as 50 cm width.
Fluted filter paper has an increase of the filter area.
Qualitative filter papers are what most users would consider general purpose filter papers.
Composed of cellulose fiber these filters are manufactured from high quality cotton linters treated to maximize alpha cellulose.
It also creates gaps between the filter paper and the funnel in which it is resting.
The gaps provide channels for the solvent to flow.
The mixture is poured from above onto a filter medium e g filter paper and gravity pulls the liquid down.
For general laboratory use in less critical analyses.
The raw materials are different paper pulps the pulp may be from softwood hardwood fiber crops mineral fibers for high quality filters dissolving pulp and mercerised pulp are used.
Crêped surface filter paper with medium flow rate.
It also creates gaps between the filter paper and the funnel in which it is resting.
F1091 grade very fast filtration.
These filters are not recommended for kjeldahl estimations.
The gaps provide channels for the solvent to flow.
A büchner flask and hose are used to create a vacuum to suck the fluid through the filter usually with the aid of gravity.
The solid is left on the filter while the liquid flows below it.