Filter Paper Circles, Medium/Slow, MN 220, Smooth, 90mm Dia., Black, Pack of 100

MN 220 filter paper circles are dyed black using a sulfur dye, making them ideal for identifying small quantities of bright precipitates. This specific grade of filter paper, MN 220, features a smooth surface and is made of cellulose material.

With a basis weight of 85 g/m² and a thickness of 0.17 mm (6.7 mil), it offers a medium to slow filtration speed, with a filtration speed of 45 seconds. The paper is 90mm in diameter, and despite its black colour, it has light wet strength.

MN 220 filter paper is commonly used for various applications, such as the detection of fluorine or silicon. It is not classified as a hazardous material.